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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 2000 - 2004 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 2000 2001 2002 2003 2004 Total
~Individually Owned Patent 457 533 435 401 360 2186
STEELCASE DEVELOPMENT CORPORATION 22 23 20 14 10 89
CERTAIN-TEED CORPORATION 8 8 5 5 6 32
OWENS-CORNING FIBERGLAS CORPORATION 7 4 10 3 8 32
ULTRAFRAME (UK) LIMITED 5 6 3 4 5 23
USG INTERIORS, INC. 5 3 3 1 6 18
HAWORTH, INC. 5 5 3 4 0 17
HERMAN MILLER INC. 0 5 6 0 5 16
DORMA GMBH & CO. KG. 5 1 5 2 2 15
SIMPSON STRONG-TIE COMPANY, INC. 2 3 2 6 1 14
VKR HOLDING A/S 0 3 3 6 1 13
PERGO, AB 0 0 1 6 4 11
WORTHINGTON ARMSTRONG VENTURE 1 3 2 1 4 11
MITEK HOLDING, INC. 0 3 5 0 2 10
NICHIHA CORPORATION 0 4 2 2 2 10
PLASTIC COMPONENTS, INC. 3 3 1 0 3 10
PPG INDUSTRIES OHIO INC. 1 3 4 0 2 10
HILTI AKTIENGESELLSCHAFT 1 2 3 1 2 9
HITACHI, LTD 0 1 2 3 3 9
TAPCO INTERNATIONAL CORPORATION 3 2 2 1 1 9
VALINGE ALUMINUM AB 2 2 1 2 2 9
CANON KABUSHIKI KAISHA 3 3 1 1 0 8
DIETRICH INDUSTRIES, INC. 0 1 2 0 5 8
HENKEL CORPORATION 3 3 1 1 0 8
JOHNS MANVILLE INTERNATIONAL, INC. 1 2 2 0 3 8
NICHIHA CO., LTD. 0 1 2 5 0 8
RITE-HITE HOLDING CORPORATION 2 3 2 1 0 8
ANDERSEN CORPORATION 2 1 2 1 1 7
ARPAL ALUMINUM LTD. 0 1 3 2 1 7
ILLINOIS TOOL WORKS INC. 0 1 2 1 3 7
KRUEGER INTERNATIONAL, INC. 2 0 1 1 3 7
NAN YA PLASTICS CORPORATION 0 0 1 4 2 7
SOLATUBE INTERNATIONAL, INC. 1 3 3 0 0 7
ANTHONY, INC. 2 1 1 2 0 6
ARMSTRONG WORLD INDUSTRIES, INC. 3 1 0 0 2 6
BUILDING MATERIALS CORPORATION OF AMERICA 6 0 0 0 0 6
CONSTRUCTION SPECIALTIES INC. 0 0 3 2 1 6
CRANE PLASTICS COMPANY LIMITED PARTNERSHIP 2 0 1 3 0 6
GEOMETRICA, INC. 0 5 1 0 0 6
GUARDIAN FIBERGLASS, INC. 2 2 1 0 1 6
ROYAL GROUP TECHNOLOGIES LIMITED 0 0 2 2 2 6
RUBBERMAID INCORPORATED 0 1 1 2 2 6
SAINT-GOBAIN VITRAGE 4 2 0 0 0 6
SICO INCORPORATED 5 1 0 0 0 6
ZONE FOUR, LLC 1 0 2 2 1 6
AEGIS METAL FRAMING LLC 0 0 4 1 0 5
ASSOCIATED MATERIALS INCORPORATED 1 0 3 0 1 5
BUILDING MATERIALS INVESTMENT CORPORATION 0 1 0 0 4 5
FREYSSINET INTERNATIONAL (STUP) 1 1 1 1 1 5
HUNTER DOUGLAS, INC. 1 2 2 0 0 5
INTERKAL, INC. 1 3 1 0 0 5
JAMES HARDIE RESEARCH PTY LIMITED 1 1 0 1 2 5
KELLEY COMPANY, INC. 2 2 1 0 0 5
KNOLL, INC. 1 1 2 0 1 5
L.B. (PLASTICS) LIMITED 0 3 2 0 0 5
LUCENT TECHNOLOGIES INC. 5 0 0 0 0 5
NIPPON STEEL CORP. 0 2 0 1 2 5
PACTIV CORPORATION 1 0 0 2 2 5
PREMARK RWP HOLDINGS, INC. 0 1 3 0 1 5
RESEARCH FOUNDATION OF STATE UNIVERSITY OF NEW YORK 1 1 3 0 0 5
TAPCO INTERNATIONAL, INC. 1 0 3 1 0 5
TOMCAT GLOBAL CORPORATION 4 1 0 0 0 5
TRIM-TEX, INC. 2 0 1 1 1 5


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Questions regarding these reports should be directed to:

U.S. Patent and Trademark Office
Office of Electronic Information Products - PTMD
MDW 4C18; P.O Box 1450
Alexandria VA 22313-1450

tel: (571) 272-5600
fax: (571) 273-0110
email: oeip@uspto.gov

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