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U.S. PATENT AND TRADEMARK OFFICE
Patent Technology Monitoring Team (PTMT)

Extended Year Set - Patenting In Technology Classes,
Breakout By Organization

Count of 1969 - 2012 Utility Patent Grants,
By Calendar Year of Grant
With Patent Counts Based on Primary Patent Classification

- Explanation of Data -

Rank Ordered Listing of Organizations Receiving 5 or More Utility Patents During the Period
Having Primary Classification In

Class 166, Wells (shafts or deep borings in the earth, e.g., for oil and gas)

( technology class is determined by the primary classification assigned to the patent- see 'Explanation of Data' )
( patent ownership is determined by the first-named assignee listed on a patent )

The following table displays first-named assignees and counts of their associated patents, as distributed by the year of patent grant.
First-Named Assignee 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 Total
~INDIVIDUALLY OWNED PATENT 71 37 53 50 55 42 43 49 61 37 25 53 52 39 43 77 58 56 88 52 57 64 70 77 71 80 67 58 52 73 53 81 126 70 77 69 50 77 75 82 55 102 69 82 2778
HALLIBURTON ENERGY SERVICES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 17 52 84 97 97 85 81 105 93 166 172 122 81 123 104 151 1630
SCHLUMBERGER TECHNOLOGY CORPORATION 29 21 20 22 10 8 8 4 3 5 1 2 4 3 1 9 5 7 6 4 5 12 8 6 6 10 5 3 4 11 26 30 64 65 62 79 55 80 89 112 91 176 148 170 1489
BAKER HUGHES INCORPORATED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 17 34 12 16 21 29 31 18 26 43 27 37 56 38 46 47 48 52 51 77 114 152 122 153 1269
SHELL OIL COMPANY 32 48 25 31 27 17 13 8 15 8 5 5 4 2 8 5 6 19 9 13 9 3 12 12 7 42 21 11 2 0 3 16 13 18 24 66 44 86 34 27 36 30 21 26 863
HALLIBURTON CO. 10 15 8 5 10 25 11 11 12 11 6 5 19 10 21 27 21 36 58 25 27 29 27 28 40 98 48 52 11 14 0 0 0 0 0 0 0 0 0 0 0 0 0 0 720
WEATHERFORD/LAMB, INC. 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 3 2 3 16 9 24 18 34 46 74 53 91 63 52 30 51 45 33 650
TEXACO INC. 9 17 18 9 18 50 42 24 19 41 31 43 27 7 6 20 22 14 25 15 15 9 13 10 12 11 10 6 4 6 7 13 6 1 0 0 1 0 0 0 0 0 0 1 582
MOBIL OIL CORP. 34 22 17 11 7 8 14 7 13 11 2 10 2 2 20 30 21 29 27 28 35 39 21 23 30 28 22 14 4 2 5 2 3 0 1 0 0 0 0 0 0 0 0 0 544
OTIS ENGINEERING CORPORATION 10 5 8 14 5 7 9 10 13 15 11 7 21 13 25 26 16 12 19 16 25 18 17 25 21 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 369
MARATHON OIL COMPANY 17 23 21 31 20 17 9 5 3 2 1 1 5 2 3 12 10 5 9 12 10 6 13 9 1 10 10 2 5 7 2 4 2 4 2 3 0 2 2 2 0 1 1 0 306
ATLANTIC RICHFIELD COMPANY 2 5 7 5 7 6 6 11 5 1 2 0 0 0 8 9 7 11 23 13 9 10 11 6 12 22 19 12 6 4 8 16 8 0 0 0 0 0 0 0 0 0 0 0 271
EXXON PRODUCTION RESEARCH COMPANY 24 18 24 16 19 12 12 14 12 14 8 7 7 2 7 10 7 7 10 6 3 1 3 2 1 4 1 1 0 1 4 1 0 0 0 0 0 0 0 0 0 0 0 0 258
PHILLIPS PETROLEUM COMPANY 26 19 26 8 14 7 8 11 10 17 1 6 10 3 2 9 12 11 5 2 3 3 2 3 2 7 1 2 1 2 2 2 3 3 1 0 0 0 0 0 0 0 0 0 244
BAKER INTERNATIONAL CORP. 9 2 5 5 1 11 10 3 8 8 5 9 16 11 22 40 21 15 13 7 6 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 228
BJ SERVICES CO 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 4 0 4 6 3 2 6 5 7 8 5 17 2 15 25 18 20 23 6 0 178
CHEVRON RESEARCH & TECHNOLOGY CO. 9 4 13 4 3 6 4 6 7 9 0 3 2 0 8 8 6 8 4 4 13 12 17 10 10 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 175
UNION OIL COMPANY OF CALIFORNIA 4 10 5 10 7 5 10 2 10 11 5 5 2 2 4 6 6 4 7 4 4 3 7 13 9 6 2 0 1 2 2 1 2 1 1 0 0 0 0 0 0 0 0 0 173
CONOCO, INC. 5 3 3 2 6 8 10 6 9 4 2 6 6 1 6 3 4 4 5 12 10 6 10 4 9 3 5 1 2 1 0 1 1 3 0 0 0 0 0 0 0 0 0 0 161
VETCO GRAY INC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 5 7 10 5 1 0 0 0 1 0 1 0 0 0 0 0 0 8 10 8 9 7 18 18 46 158
DRESSER INDUSTRIES, INC. 5 5 9 3 12 12 11 11 9 4 5 7 2 3 3 5 3 2 8 8 5 1 1 6 2 0 2 1 0 0 3 3 3 0 0 0 0 0 0 0 0 0 0 0 154
ABB VETCOGRAY INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 7 14 15 6 2 9 9 10 11 11 11 11 12 2 0 0 0 0 0 0 0 132
CAMCO INCORPORATED 5 0 3 3 8 11 3 2 1 3 6 4 5 2 2 5 12 20 11 9 7 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 125
INSTITUT FRANCAIS DU PETROLE 0 1 1 0 1 0 1 0 0 2 0 0 3 2 2 4 0 2 6 5 3 12 6 8 11 15 1 2 3 7 3 2 8 0 2 0 0 5 1 1 1 1 1 0 123
AMOCO CORPORATION 0 0 0 0 0 0 0 0 4 7 4 8 12 10 5 4 5 5 12 4 4 2 3 4 2 0 10 5 0 5 3 0 0 0 0 0 0 0 0 0 0 0 0 0 118
DOW CHEMICAL COMPANY 13 10 10 5 13 13 5 3 4 8 7 4 7 3 1 2 4 0 1 2 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 118
SMITH INTERNATIONAL INC. 0 0 0 0 0 0 0 2 0 1 1 0 0 0 1 1 3 3 0 0 0 0 3 1 0 0 4 0 1 3 4 3 4 5 10 5 7 6 10 11 3 9 8 6 115
HYDRIL COMPANY L.P. 0 2 1 2 9 10 8 5 6 5 0 1 9 3 0 7 7 7 3 0 2 2 0 0 0 1 0 0 1 1 0 2 1 2 2 0 0 4 4 2 0 0 0 0 109
CAMCO INTERNATIONAL INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 4 7 8 7 7 6 0 3 16 18 25 4 0 0 0 0 0 0 0 0 0 0 107
EXXONMOBIL UPSTREAM RESEARCH COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 5 3 9 7 4 4 1 7 8 12 9 17 89
HUGHES TOOL COMPANY 0 1 0 0 1 1 0 0 0 0 1 0 1 5 7 14 11 18 14 11 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 87
FMC CORPORATION 3 2 0 1 2 0 0 0 3 2 2 1 1 0 2 1 0 1 1 0 1 1 4 2 3 1 0 1 0 12 6 4 1 9 0 0 0 0 0 0 0 0 0 0 67
FMC TECHNOLOGIES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 15 8 5 10 8 3 4 2 3 1 66
DRIL-QUIP, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 2 1 5 5 0 1 2 0 1 3 4 0 3 10 2 6 2 4 2 1 0 3 59
DOWELL SCHLUMBERGER INCORPORATED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 10 6 9 8 5 6 3 7 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 57
CITIES SERVICE COMPANY 2 2 13 11 10 5 3 3 2 0 0 1 0 0 2 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 55
ENVENTURE GLOBAL TECHNOLOGY L.L.C. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 3 8 12 9 9 4 6 52
TESCO CORP 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 2 0 5 4 3 3 18 7 8 52
STINGER WELLHEAD PROTECTION, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 6 10 12 8 5 50
OCCIDENTAL OIL SHALE, INC. 0 0 0 0 0 0 0 0 1 12 12 6 9 1 3 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 46
CDX GAS, LLC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 4 6 6 11 9 4 1 0 0 0 45
PETROLEO BRASILEIRO S.A. PETROBRAS 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 3 1 1 1 3 5 4 0 1 1 0 5 2 3 5 0 1 1 1 3 1 0 1 1 45
CHEVRON U.S.A. INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 1 1 0 1 1 1 1 1 1 2 1 3 9 8 7 42
PAN AMERICAN PETROLEUM CORPORATION 18 9 11 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 42
CAMERON IRON WORKS, INC. 2 0 1 1 1 1 2 2 2 2 5 4 0 5 2 4 2 2 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 41
UNITED STATES OF AMERICA, DEPARTMENT OF ENERGY 0 0 1 2 1 2 0 4 4 4 0 1 1 2 5 4 3 0 1 1 1 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 41
VARCO I/P, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 4 6 7 9 4 2 3 0 0 39
BROWN OIL TOOLS, INC. 4 1 3 2 2 7 2 3 6 5 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 38
CONOCOPHILLIPS COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 3 2 4 1 2 1 6 6 5 37
COOPER CAMERON CORPORATION, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 4 5 4 6 7 3 2 3 0 0 0 0 0 0 37
FRANK'S CASING CREW & RENTAL TOOLS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 1 1 4 0 2 1 3 2 2 2 8 8 37
VETCO, INC. 0 1 3 5 6 2 8 4 1 1 0 1 1 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 35
STANDARD OIL CORPORATION (INDIANA) 0 0 0 0 0 0 2 5 0 0 0 1 0 0 1 14 6 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 32
TIW CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 2 4 3 0 0 1 1 2 3 1 3 2 3 1 1 1 2 32
AVA INTERNATIONAL CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 3 5 3 2 4 2 0 0 2 3 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 31
SPECIALISED PETROLEUM SERVICES GROUP LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 3 7 6 5 2 3 31
AMOCO PRODUCTION COMPANY 0 0 7 6 9 6 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 30
ARMCO INC. 0 1 0 0 1 1 0 0 1 0 2 3 9 3 1 6 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 30
GULF RESEARCH AND DEVELOPMENT COMPANY 6 1 2 3 1 2 0 0 2 0 1 1 6 2 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 29
CAMERON IRON WORKS USA, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11 14 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 28
CAMERON INTERNATIONAL CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 3 6 2 2 4 4 26
COOPER INDUSTRIES INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 8 4 5 5 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 26
EXXON RESEARCH + ENGINEERING CO. 1 1 0 1 0 0 0 1 0 0 0 0 2 1 1 6 2 2 5 2 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 26
SAUDI ARABIAN OIL COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2 0 0 2 6 1 6 0 8 26
SOCIETE NATIONALE ELF AQUITAINE (PROD.) 0 0 0 0 0 0 0 0 0 4 1 1 1 0 0 1 2 3 1 4 3 0 1 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 26
SUN OIL COMPANY OF PENNSYLVANIA 2 2 0 3 6 5 4 3 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 26
TEXAS IRON WORKS, INC. 0 1 0 1 0 0 1 2 0 1 0 0 2 0 1 0 0 0 3 2 3 4 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 26
WEATHERFORD U.S., INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2 2 1 2 1 0 3 5 4 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 26
FRANK'S INTERNATIONAL, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 0 1 3 2 2 1 1 0 2 1 1 5 2 25
ALBERTA OIL SANDS TECHNOLOGY & RESEARCH AUTHORITY 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 1 0 0 1 1 0 6 2 0 1 2 0 0 1 2 0 3 0 0 0 0 0 0 0 0 0 0 0 23
GEO VANN, INC. 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 6 10 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 23
INTEVEP, S.A. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 2 2 1 2 1 0 0 0 0 0 0 1 5 3 0 0 0 0 1 0 1 0 1 23
MAKO RENTALS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 0 4 6 2 6 23
UOP 0 0 1 0 0 0 0 1 0 2 1 0 1 2 4 6 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 23
BYRON JACKSON INC. 6 6 3 0 3 1 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22
DEN NORSKE STATS OLJESELSKAP A.S. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 6 0 1 2 0 2 0 2 0 5 0 2 0 0 0 0 0 0 0 0 0 22
GETTY OIL COMPANY 2 0 0 0 1 3 6 2 0 0 0 0 1 2 0 3 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22
HALLIBURTON SERVICES 0 0 0 0 1 0 0 0 0 0 0 1 1 8 1 0 1 0 1 0 4 0 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22
STREAM-FLO INDUSTRIES LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 1 2 3 1 1 0 1 3 2 4 2 22
EXPRO NORTH SEA LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 6 5 2 0 0 1 1 1 0 1 0 1 1 0 21
GEARHART INDUSTRIES, INC. 0 0 0 1 2 0 3 1 0 4 0 0 0 1 1 2 2 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21
GRAY TOOL COMPANY 3 2 2 3 4 2 0 0 0 2 0 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21
NALCO CHEMICAL COMPANY 1 2 1 0 5 1 0 0 1 0 0 0 1 0 0 0 0 0 1 0 2 1 2 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21
THE BRITISH PETROLEUM COMPANY P.L.C. 0 0 2 0 0 0 0 0 1 0 0 1 0 0 1 0 1 0 2 1 2 1 7 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 21
WORLD ENERGY SYSTEMS, INCORPORATED 0 0 0 0 0 0 0 2 2 2 1 1 0 0 0 0 0 1 1 0 1 0 0 1 0 0 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 2 0 4 21
IN SITU TECHNOLOGY, INC. 0 0 0 0 0 0 1 2 3 7 1 1 0 0 0 4 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20
TENNECO OIL COMPANY 2 6 5 2 2 1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20
WESTERN COMPANY OF NORTH AMERICA 0 0 3 0 0 0 0 1 0 0 0 1 1 0 0 1 0 0 2 1 0 0 3 1 2 1 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20
WOOD GROUP ESP, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 4 2 0 4 2 5 1 0 0 0 20
M-I L.L.C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 3 2 1 1 2 2 3 2 0 1 19
TRI-STATE OIL TOOL INDUSTRIES, INC. 0 0 1 1 2 1 0 0 0 0 0 0 1 1 2 1 0 0 0 1 2 1 3 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 18
CAMPAGNIE FRANCAISE DES PETROLES, SOCIETE ANONYME 0 0 0 0 0 1 0 0 1 1 1 3 0 0 0 4 3 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 17
HYDRIL USA MANUFACTURING LLC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 3 2 10 17
KVAERNER OIFIELD PRODUCTS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 5 0 2 4 3 0 0 0 0 0 0 0 0 17
NATIONAL-OILWELL VARCO, L.P. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 4 7 17
ROCKWELL MANUFACTURING COMPANY 5 3 2 1 5 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 17
WELLDYNAMICS INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 0 0 1 2 1 2 4 2 1 17
WESTERN WELL TOOL, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 2 1 2 2 0 2 4 0 2 0 0 0 17
DAVIS-LYNCH, INC. 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 2 2 2 0 1 1 0 1 0 0 0 3 0 1 0 0 0 0 0 1 0 0 16
LYNES, INC. 2 4 4 0 1 1 0 2 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16
SHELL OFFSHORE INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 3 2 0 1 0 5 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 16
TEXACO EXPLORATION CANADA LTD. 0 0 0 0 0 1 1 4 3 5 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16
NL INDUSTRIES INC. 0 0 0 1 0 1 0 0 0 1 0 0 2 0 3 2 2 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15
STATOIL ASA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 2 1 1 2 2 4 15
WESTERN ATLAS INTERNATIONAL, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 1 1 5 2 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 15
BP CORPORATION NORTH AMERICA INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 2 1 2 2 5 14
DOWELL, A DIVISION OF SCHLUMBERGER TECHNOLOGY CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 7 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14
E2 TECH LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 2 6 1 1 1 0 0 14
IIT RESEARCH INSTITUTE 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 4 3 0 1 0 1 2 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14
LINDSEY COMPLETION SYSTEMS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 4 2 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 14
PACKERS PLUS ENERGY SERVICES INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 0 2 1 3 3 1 14
PETROQUIP ENERGY SERVICES, LLP 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 3 0 2 4 14
PRODUCTION CONTROL SERVICES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 4 2 3 0 14
VARCO INTERNATIONAL, INC. 0 0 0 0 0 2 2 1 0 0 0 0 0 0 1 4 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 14
RED SPIDER TECHNOLOGY LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 9 13
TAM INTERNATIONAL, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 1 1 1 0 0 1 1 0 0 0 0 0 1 0 0 1 0 0 2 1 0 13
CALGON CORPORATION 2 0 1 1 2 1 0 3 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12
ELF EXPLORATION PRODUCTION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 5 0 1 0 0 0 0 0 0 0 0 0 12
NATIONAL-OILWELL, L.P. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 1 3 2 1 1 0 1 0 12
PETROLITE CORPORATION 0 0 1 0 2 2 1 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 12
PINE TREE GAS, LLC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 3 4 12
Q.E.D. ENVIRONMENTAL SYSTEMS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0 2 3 0 2 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 12
ALBERTA RESEARCH COUNCIL INC. 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 0 1 0 0 0 1 0 1 2 0 11
BAROID TECHNOLOGY, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 1 0 1 2 1 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 11
BOWEN TOOLS, INC. 2 0 0 3 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
CLEARWATER INTERNATIONAL LLC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 2 2 1 4 0 11
COOK TESTING CO. 6 1 1 1 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
E. I. DU PONT DE NEMOURS AND COMPANY 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 4 2 1 11
HALLIBURTON LOGGING SERVICES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 1 2 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
INTELLISERV, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 5 5 0 0 0 0 0 11
OCEANEERING INTERNATIONAL, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 1 0 0 1 0 0 1 4 0 0 1 0 0 11
OWEN OIL TOOLS LP. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 2 3 0 2 1 11
PES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 4 1 3 0 0 0 0 0 0 0 0 0 0 0 0 11
STANDARD OIL COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 1 0 2 0 3 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
BESTLINE LINER SYSTEMS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 2 0 4 1 0 0 1 0 0 0 0 0 0 0 0 0 0 10
BJ SERVICES COMPANY LLC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 1 0 10
DEEP OIL TECHNOLOGY INC. 0 0 0 2 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 10
DOWNHOLE PRODUCTS (UK) LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 2 1 1 1 1 0 0 0 2 0 0 10
GAS RESEARCH INSTITUTE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 3 0 0 0 1 1 2 2 0 0 0 0 0 0 0 0 0 0 0 0 10
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ROBBINS & MYERS ENERGY SYSTEMS, L.P. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 1 1 3 1 2 10
ROCKWELL INTERNATIONAL CORPORATION 0 2 3 0 0 2 0 0 0 0 0 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 10
SENSOR HIGHWAY LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 1 1 3 0 0 0 0 0 0 10
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BJ HUGHES INC. 0 0 0 0 0 0 0 0 2 0 0 0 1 5 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
BP EXPLORATION OPERATING COMPANY LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 1 1 2 2 1 9
CAMERON SYSTEMS (IRELAND) LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 6 9
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PETROLEUM ENGINEERING SERVICES LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 2 0 3 0 1 0 0 0 0 0 0 0 0 0 0 0 9
RAYTHEON COMPANY 0 0 0 0 0 0 0 0 0 0 2 0 1 1 0 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 9
REEVES WIRELINE TECHNOLOGIES LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2 2 0 0 1 0 0 0 0 1 9
REGAN FORGE AND ENGINEERING COMPANY 2 2 1 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9
SPECIALIZED PETROLEUM SERVICES LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 4 2 0 0 0 0 0 0 0 0 0 0 9
SWELLTEC LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 5 9
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COUPLER DEVELOPMENTS LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 2 0 0 1 2 1 0 0 0 8
CTC INTERNATIONAL CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
DEUTSCHE TEXACO AKTIENGESELLSCHAFT 0 0 0 1 1 0 0 1 2 0 0 0 2 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8
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NORSK HYDRO ASA 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 2 2 2 0 0 8
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SUPERIOR ENERGY SERVICES, L.L.C. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 0 0 0 2 1 2 8
VETCO GRAY CONTROLS LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 2 1 3 8
ALLAMON INTEREST 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 4 1 1 0 0 0 0 0 0 7
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ENTREPRISE DE RECHERCHES ET D'ACTIVITIES PETROLIERES (E.R. 0 0 1 0 1 2 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
FMC KONGSBERG SUBSEA AS 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 1 2 0 1 7
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MWL TOOL AND SUPPLY COMPANY 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
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STEWART + STEVENSON SERVICES, INC. 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 7
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UNIVERSITY OF CALIFORNIA, THE REGENTS OF 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 1 1 0 2 0 0 1 0 0 0 0 7
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WESTINGHOUSE ELECTRIC CORP. 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7
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ABB OFFSHORE SYSTEMS LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 3 0 0 0 0 0 0 0 0 6
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ARCHON TECHNOLOGIES LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 2 1 6
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CARMEL ENERGY, INC. 0 0 0 0 0 0 0 2 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
CLEANSORB LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 0 2 0 0 0 0 0 0 1 0 6
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ELECTROTHERMIC CO. 0 2 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6
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UNIVERSITY OF SOUTHERN CALIFORNIA 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 6
VETCO GRAY SCANDINAVIA AS 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 3 6
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WELL MASTER CORP 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 0 2 6
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CANRIG DRILLING TECHNOLOGY LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 0 1 0 5
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EASTERN OIL TOOLS PTE, LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
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ENSCI INCORPORATED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
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EXPLORATION AND PRODUCTION SERVICES (NORTH SEA) LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5
FIKE CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 2 0 0 0 0 1 0 0 0 5
GENERAL MOTORS CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 5
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LAYNE + BOWLER COMPANY 1 0 3 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
MAERSK OLIE OG GAS A/S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 2 1 5
MAGNA CORPORATION 0 0 0 0 0 0 0 0 0 0 0 1 1 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
MUTH PUMP LLC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 1 0 1 0 0 0 0 0 0 0 0 0 5
NORSK HYDRO A/S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
PILOT DRILLING CONTROL LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 1 5
PIONEER ENERGY, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 0 0 5
REGAN OFFSHORE INTERNATIONAL, INC. 0 0 0 0 0 0 2 1 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
RESLINK AS 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 0 1 0 0 5
SANDIA CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 1 0 1 1 0 0 0 0 0 0 0 0 5
SCIENTIFIC DRILLING INTERNATIONAL, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 5
SOCIETE NATIONALE ELF AQUITAINE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
SPECIALTY MACHINE & SUPPLY, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
SPS-AFOS GROUP LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2 0 0 0 0 0 0 0 0 0 5
SUBSEA EQUIPMENT ASSOCIATES LIMITED 0 0 0 0 0 1 1 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
SUBSURFACE TECHNOLOGIES INCORPORATED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 1 0 1 0 0 5
SUNSTONE CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 1 0 1 0 5
TEAM OIL TOOLS, LP 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 0 0 0 0 0 1 5
TETRA TECHNOLOGIES, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 1 0 0 0 0 0 0 2 5
TEXACO DEVELOPMENT CORPORATION 0 0 0 0 0 0 1 0 1 0 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
TEXACO TRINIDAD, INC. 0 1 0 0 0 0 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
TEXAS UNITED CHEMICAL COMPANY, LLC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 2 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 5
TOTAL SEPARATION SOLUTIONS, LLC 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 2 0 0 0 5
UENTECH CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5
UNIVERSITY OF TEXAS 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 0 0 0 0 0 0 0 1 5
UNIVERSITY OF WYOMING RESEARCH CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 0 0 1 0 1 5
VARCO SHAFFER, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 5
WELL-EQUIP LIMITED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5


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Electronic Information Products Division - PTMT
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email: oeip@uspto.gov

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