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U.S. PATENT AND TRADEMARK OFFICE
Office of Electronic Information Products
Patent Technology Monitoring Division (PTMD)

Patenting In Technology Classes,
Breakout By Organization

Count of 1998 - 2002 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 208, Mineral Oils: Processes and Products

( 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 1998 1999 2000 2001 2002 Total
EXXON RESEARCH + ENGINEERING CO. 19 44 31 25 4 123
UOP 13 28 27 21 15 104
INSTITUT FRANCAIS DU PETROLE 5 17 26 23 18 89
MOBIL OIL CORP. 7 14 7 10 2 40
~Individually Owned Patent 6 14 8 7 5 40
PHILLIPS PETROLEUM COMPANY 6 6 10 4 11 37
CHEVRON U.S.A. INC. 4 5 5 5 8 27
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY 0 0 1 7 16 24
TEXACO INC. 7 7 4 2 3 23
EXXON CHEMICALS PATENTS INC. 2 5 6 3 0 16
CATALYTIC DISTILLATION TECHNOLOGIES 3 1 2 2 7 15
SHELL OIL COMPANY 5 5 1 3 1 15
INTEVEP, S.A. 3 6 2 2 1 14
NALCO/EXXON ENERGY CHEMICALS, L.P 5 4 0 0 2 11
MARATHON ASHLAND PETROLEUM LLC 0 2 2 1 5 10
BETZDEARBORN INC. 3 1 2 1 1 8
CHEVRON CHEMICAL COMPANY 4 3 1 0 0 8
MEMBRANE TECHNOLOGY & RESEARCH, INC. 0 0 1 6 1 8
TOTAL RAFFINAGE DISTRIBUTION S.A 2 3 1 1 1 8
W. R. GRACE & CO.-CONN. 0 0 4 1 3 8
AKZO NOBEL NV 2 2 0 2 1 7
BAKER HUGHES INCORPORATED 1 2 3 1 0 7
IDEMITSU KOSAN COMPANY LIMITED 1 1 0 2 3 7
M. W. KELLOGG COMPANY 1 5 1 0 0 7
NIPPON MITSUBISHI OIL CORPORATION 0 0 2 5 0 7
BP AMOCO CORPORATION 0 2 4 0 0 6
CHEVRON CHEMICAL COMPANY LLC 0 2 2 2 0 6
CHINA PETROCHEMICAL DEVELOPMENT CORP. 0 1 1 1 3 6
ORMAT INDUSTRIES, LTD. 0 3 0 2 1 6
AMOCO CORPORATION 4 1 0 0 0 5
MIAMI UNIVERSITY 0 1 0 3 1 5
NIPPON OIL COMPANY LTD. 1 3 1 0 0 5
UNIPURE CORPORATION 0 3 0 0 2 5


PTMD Contacts

Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Office of Electronic Information Products - PTMD
PK3- Suite 441; P.O Box 1450
Alexandria VA 22313

tel: (703) 306-2600
fax: (703) 306-2737
email: oeip@uspto.gov

address of PTMD pages at the USPTO Web Site: http://www.uspto.gov/web/offices/ac/ido/oeip/taf/tafp.html
ftp download of selected PTMD reports and materials from : ftp.uspto.gov/pub/taf/


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