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U.S. PATENT AND TRADEMARK OFFICE
Electronic Information Products Division
Patent Technology Monitoring Team (PTMT)

Patenting In Technology Classes,
Breakout By Organization

Count of 1969 - 2007 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 052, Static Structures (e.g., Buildings)

( 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 Total
~INDIVIDUALLY OWNED PATENT 294 246 300 256 328 330 269 291 324 364 188 245 297 181 184 306 238 350 376 309 389 351 304 262 309 347 300 382 430 496 466 456 532 434 401 360 295 232 179 12601
UNITED STATES GYPSUM COMPANY 3 2 2 4 6 4 10 14 6 3 4 8 6 2 5 3 3 16 3 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 107
STEELCASE DEVELOPMENT 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 6 22 23 20 14 10 6 1 1 103
NATIONAL GYPSUM COMPANY 4 3 1 1 5 2 1 4 2 2 1 1 0 3 1 5 1 6 7 4 10 5 4 2 0 3 4 4 1 4 0 1 0 0 0 0 0 0 0 92
ARMSTRONG WORLD INDUSTRIES, INC. 1 4 2 2 4 3 4 1 5 5 2 2 2 0 2 2 2 2 0 3 1 2 0 1 3 7 3 2 0 2 1 3 1 0 0 2 0 0 0 76
YOSHIDA KOGYO KABUSHIKI KAISHA 0 0 0 0 0 0 0 4 6 9 1 1 2 1 3 2 11 15 6 1 1 3 5 4 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 76
H. H. ROBERTSON COMPANY 8 5 8 2 4 7 2 4 4 3 4 7 2 0 1 3 3 3 2 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 75
CERTAIN-TEED CORPORATION 2 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 3 2 4 3 1 2 9 8 8 5 5 6 4 3 5 72
OWENS-CORNING FIBERGLAS TECHNOLOGY, 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 4 5 6 9 7 4 10 3 8 1 1 2 61
STEELCASE INC. 0 0 0 1 0 4 1 0 0 0 0 2 0 0 1 0 0 0 1 0 1 0 0 0 2 2 2 3 5 16 13 3 1 0 0 0 0 0 0 58
SIMPSON STRONG-TIE COMPANY, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 1 1 2 4 2 2 3 5 1 1 3 2 2 2 3 2 6 1 4 3 3 55
DONN PRODUCTS, INC. 0 2 0 1 0 1 1 0 0 1 1 1 1 1 3 7 9 13 6 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 52
HERMAN MILLER INC. 2 1 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 1 2 0 1 1 7 6 4 2 3 1 0 0 0 0 5 6 0 5 0 0 0 50
BUTLER-MANUFACTURING COMPANY 0 0 1 0 1 1 0 2 3 3 2 3 0 1 0 0 5 2 3 1 3 3 4 1 4 1 1 0 1 0 0 1 0 0 0 1 0 1 0 49
ILLINOIS TOOL WORKS INC. 1 2 2 0 0 3 2 1 1 0 1 1 0 0 0 1 1 2 1 1 0 0 2 2 0 3 2 2 2 3 1 0 1 2 1 3 2 0 0 46
KAJIMA CORPORATION 0 0 0 0 1 0 0 0 1 2 0 0 0 0 0 0 0 0 0 0 1 6 7 2 4 6 9 1 3 0 1 0 0 0 0 1 0 0 0 45
PPG INDUSTRIES INC. 2 2 1 0 2 0 1 2 4 5 2 2 1 0 0 2 1 2 3 2 1 0 0 0 2 1 0 2 3 1 1 0 0 0 0 0 0 0 0 45
OWENS-CORNING FIBERGLAS CORPORATION 1 4 3 0 0 2 1 1 1 0 3 2 2 2 1 2 9 3 3 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 43
KAWNEER COMPANY, INC. 0 0 0 0 0 0 3 1 2 3 1 1 2 2 4 1 0 1 0 1 1 2 2 0 1 2 1 3 1 1 2 0 0 2 0 0 0 0 0 40
DOW CHEMICAL COMPANY 2 0 2 0 3 0 1 0 3 2 0 1 0 1 0 0 1 2 5 2 0 1 1 1 0 2 1 2 1 2 0 0 3 0 0 0 0 0 0 39
GENERAL ELECTRIC COMPANY 2 2 1 0 1 1 1 1 0 1 2 1 1 2 1 1 0 1 0 1 4 0 0 0 2 0 2 3 1 0 1 1 2 0 0 1 2 0 0 39
CONSTRUCTION SPECIALTIES INC. 0 0 2 0 3 1 1 0 0 2 1 2 2 0 0 0 1 3 0 0 1 0 2 2 0 1 0 2 3 1 1 0 0 3 2 1 0 0 0 37
HILTI AKTIENGESELLSCHAFT 0 0 0 0 0 0 0 0 0 2 0 1 1 0 0 0 1 2 1 2 0 1 1 3 0 1 0 1 5 1 2 1 2 3 1 2 0 2 0 36
USG INTERIORS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 1 1 1 3 0 0 1 3 2 1 5 3 3 1 6 0 1 0 36
JOHNS-MANVILLE CORPORATION 3 2 2 0 2 2 1 6 8 5 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 35
SHIMIZU CONSTRUCTION CO., LTD. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 3 4 6 7 5 4 2 0 0 0 0 0 0 0 0 0 0 0 0 0 35
STANDARD PRODUCTS COMPANY 0 2 0 1 3 2 2 3 0 0 0 2 0 0 0 1 0 0 0 0 6 5 4 1 0 1 0 0 0 2 0 0 0 0 0 0 0 0 0 35
HUNTER DOUGLAS INTERNATIONAL N.V. 1 1 0 1 1 0 2 3 1 1 1 1 4 1 0 2 0 1 4 3 1 1 2 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 34
WESTINGHOUSE ELECTRIC CORP. 0 1 1 0 1 3 2 0 0 1 1 3 2 2 2 2 2 3 1 0 0 3 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 34
DYCKERHOFF + WIDMANN AKTIENGESELLSCHAFT 0 0 3 0 1 2 0 0 0 3 1 3 0 1 1 2 1 3 3 1 3 1 1 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0 33
HAWORTH, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 1 0 1 0 1 0 0 1 0 1 3 3 5 5 3 4 0 1 1 0 33
WASCO PRODUCTS, INC. 0 1 0 0 0 1 2 0 0 3 0 0 0 0 2 6 2 2 2 1 1 3 4 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 33
ALCAN ALUMINUM CORPORATION 1 0 0 1 0 0 1 2 1 2 0 3 3 3 1 3 2 0 0 1 1 0 4 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 31
ANDERSEN CORPORATION 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 1 0 1 2 1 2 4 5 2 0 2 1 2 1 1 1 2 1 31
ALCOA INC. 2 2 0 7 1 2 0 3 0 0 0 0 1 0 0 1 0 1 0 0 0 0 2 0 0 2 3 0 0 0 0 0 0 1 0 1 0 0 0 29
W. P. HICKMAN COMPANY, INC. 0 0 0 0 2 2 0 0 0 1 0 0 0 0 0 2 1 3 2 2 0 3 0 1 4 0 1 0 0 0 1 0 1 1 0 1 0 0 0 28
GENERAL MOTORS CORPORATION 1 2 0 1 2 1 0 4 0 0 2 1 1 0 1 0 0 0 0 2 2 0 1 1 2 0 1 0 0 0 0 0 1 0 0 0 0 0 0 26
ULTRAFRAME (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 0 1 5 6 3 4 5 0 1 0 25
CHICAGO METALLIC CORPORATION 0 1 1 0 1 2 0 1 1 0 0 0 0 0 0 0 3 1 2 1 3 1 2 0 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 24
W. R. GRACE & CO.-CONN. 0 0 3 0 0 1 1 0 2 1 0 1 0 0 0 1 0 1 2 0 0 0 1 0 0 0 1 0 1 0 1 0 0 0 1 1 1 2 2 24
MITEK HOLDING, INC. 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 2 2 0 1 6 0 3 5 0 2 0 0 1 23
CELOTEX CORPORATION 2 2 1 1 0 4 0 1 0 1 0 0 2 0 0 1 1 0 1 0 0 0 1 0 0 0 1 0 0 1 0 1 1 0 0 0 0 0 0 22
HITACHI, LTD 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 2 1 1 0 0 1 2 3 3 1 1 2 22
MASONITE CORPORATION 0 0 0 0 0 1 0 0 2 1 0 0 1 0 1 4 0 5 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2 0 0 3 1 22
MM SYSTEMS CORPORATION 0 0 0 0 0 0 0 1 1 0 1 1 1 0 2 0 2 1 2 0 1 2 0 0 1 0 0 1 0 1 4 0 0 0 0 0 0 0 0 22
UNITED STATES OF AMERICA, NATIONAL AERONAUTICS AND SPACE ADMINISTRATION 2 0 0 4 1 0 0 0 0 0 0 1 1 0 0 1 2 2 2 3 1 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 22
PERGO, AB 0 0 0 0 0 0 0 0 0 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 6 4 5 4 1 21
HOHMANN BARNARD, INC. 0 0 0 0 0 0 0 3 3 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 2 1 0 0 1 0 2 1 5 1 0 20
BALCO, INC. 0 0 0 1 2 1 0 0 2 2 0 1 1 0 0 1 0 0 1 0 0 0 0 2 1 1 0 0 0 0 0 0 0 0 1 0 2 0 0 19
HAROLD SIMPSON, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 2 0 1 0 1 1 0 1 0 0 3 2 1 0 1 0 1 1 1 0 0 19
MINNESOTA MINING AND MANUFACTURING COMPANY 1 0 0 0 0 0 0 0 0 1 1 2 0 1 0 2 0 0 1 0 0 0 0 1 0 0 2 2 0 2 3 0 0 0 0 0 0 0 0 19
ODL, INCORPORATED 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 4 1 2 1 0 0 1 3 1 1 0 1 0 1 0 1 0 0 19
VALINGE ALUMINUM AB 0 0 0 0 0 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 2 1 2 2 5 3 0 19
DORMA GMBH & CO. KG. 0 0 0 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 5 1 5 2 2 0 1 0 18
TAPCO 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 2 4 2 1 0 3 1 0 0 1 4 18
TEXTRON INC. 1 2 4 0 4 2 2 0 1 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 1 0 0 18
YKK ARCHITECTURAL 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 2 1 0 0 0 8 3 2 2 0 0 0 0 0 0 0 18
AMERICAN SEATING COMPANY 1 1 1 1 1 0 0 0 2 1 1 2 1 0 1 2 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 17
DYNAMIT NOBEL AKTIENGESELLSCHAFT 1 0 0 1 0 1 3 2 3 1 1 1 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 17
GANG NAIL SYSTEMS, INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 7 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 17
SKYLINE DISPLAYS, INC. 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 1 0 1 0 1 0 0 0 0 2 1 1 3 0 17
VKR HOLDING 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 3 3 6 1 3 1 0 17
WENGER CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 4 0 0 0 1 1 2 2 0 0 0 1 1 1 1 1 17
WORTHINGTON ARMSTRONG VENTURE 0 0 0 0 0 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 3 2 1 4 1 1 3 17
DIETRICH INDUSTRIES, 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 1 2 0 5 1 1 4 16
FREYSSINET INTERNATIONAL (STUP) 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 4 2 1 0 0 2 0 0 0 0 0 0 0 0 0 1 1 1 1 1 0 0 1 16
REYNOLDS METALS COMPANY 3 3 2 0 1 1 1 0 0 2 0 0 1 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 16
RITE-HITE HOLDING 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 2 3 2 1 0 4 0 3 16
ROBBINS, INC. 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 1 4 0 1 0 0 1 0 1 1 0 2 1 0 16
ROLSCREEN COMPANY 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 1 0 4 2 1 2 1 2 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16
TOSHIBA CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 3 1 0 0 0 0 2 5 0 1 0 0 0 0 0 1 1 0 0 0 0 0 16
UNITED STATES OF AMERICA, NAVY 2 1 3 0 0 0 2 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 2 0 0 2 0 0 16
ARMCO INC. 1 0 1 0 2 0 0 0 0 3 1 1 0 1 1 2 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15
BOEING COMPANY 0 0 0 0 1 0 1 0 1 1 0 0 0 0 2 1 1 2 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 15
BRIDGESTONE CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 2 0 1 1 0 1 0 0 0 1 0 0 1 1 2 0 1 1 0 0 0 0 0 15
DAYTON SUPERIOR CORPORATION 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 2 0 0 1 0 1 0 0 2 1 0 0 1 2 2 1 1 15
SAINT-GOBAIN VITRAGE 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 2 1 0 0 0 1 1 2 1 4 2 0 0 0 0 0 0 15
TRW INC. 3 1 0 4 1 0 2 0 0 1 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 15
BUILDING MATERIALS CORPORATION OF AMERICA 0 0 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 3 3 6 0 0 0 0 0 0 0 14
BUILDING MATERIALS INVESTMENT 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 0 0 4 3 4 2 14
KELLEY COMPANY, INC. 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 4 0 0 0 0 1 0 0 0 1 0 0 1 2 2 1 0 0 0 0 0 14
MID-AMERICA BUILDING PRODUCTS CORPORATION 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 3 4 2 0 0 0 0 0 0 0 0 0 0 14
NATIONAL ROLLING MILLS INC. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 3 4 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 14
SIMPSON MANUFACTURING CO., INC. 0 0 0 0 0 1 1 1 4 5 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 14
SOLATUBE 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 0 2 1 3 3 0 0 0 3 2 14
STANLEY WORKS 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 1 2 0 0 2 1 1 1 1 0 1 0 1 0 0 0 14
TAPCO 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 2 0 0 0 3 2 2 1 1 1 1 1 14
TRIM-TEX, 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 1 1 1 1 0 3 1 2 0 1 1 1 0 0 1 14
A. B. CHANCE CO. 0 0 0 0 0 0 0 0 0 2 0 0 0 3 0 1 2 0 1 0 0 0 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13
CYCLOPS CORPORATION 0 0 0 0 1 0 0 0 1 2 0 0 0 0 1 1 1 3 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13
FISCHERWERKE ARTUR FISCHER GMBH & CO. KG 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