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

Patenting In Technology Classes,
Breakout By Organization

Count of 2001 - 2005 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 2001 2002 2003 2004 2005 Total
~Individually Owned Patent 532 435 401 360 295 2023
STEELCASE DEVELOPMENT CORPORATION 23 20 14 10 6 73
CERTAIN-TEED CORPORATION 8 5 5 6 4 28
OWENS-CORNING FIBERGLAS CORPORATION 4 10 3 8 1 26
ULTRAFRAME (UK) LIMITED 6 3 4 5 0 18
HERMAN MILLER INC. 5 6 0 5 0 16
PERGO, AB 0 1 6 4 5 16
SIMPSON STRONG-TIE COMPANY, INC. 3 2 6 1 4 16
VKR HOLDING A/S 3 3 6 1 3 16
HAWORTH, INC. 5 3 4 0 1 13
USG INTERIORS, INC. 3 3 1 6 0 13
VALINGE ALUMINUM AB 2 1 2 2 5 12
NICHIHA CORPORATION 4 2 2 2 1 11
PPG INDUSTRIES OHIO INC. 3 4 0 2 2 11
WORTHINGTON ARMSTRONG VENTURE 3 2 1 4 1 11
DORMA GMBH & CO. KG. 1 5 2 2 0 10
HITACHI, LTD 1 2 3 3 1 10
MITEK HOLDING, INC. 3 5 0 2 0 10
RITE-HITE HOLDING CORPORATION 3 2 1 0 4 10
DIETRICH INDUSTRIES, INC. 1 2 0 5 1 9
HOHMANN BARNARD, INC. 1 0 2 1 5 9
ILLINOIS TOOL WORKS INC. 1 2 1 3 2 9
JOHNS MANVILLE INTERNATIONAL, INC. 2 2 0 3 2 9
NICHIHA CO., LTD. 1 2 5 0 1 9
ROYAL GROUP TECHNOLOGIES LIMITED 0 2 2 2 3 9
BUILDING MATERIALS INVESTMENT CORPORATION 1 0 0 4 3 8
HILTI AKTIENGESELLSCHAFT 2 3 1 2 0 8
ARPAL ALUMINUM LTD. 1 3 2 1 0 7
KRUEGER INTERNATIONAL, INC. 0 1 1 3 2 7
NAN YA PLASTICS CORPORATION 0 1 4 2 0 7
PLASTIC COMPONENTS, INC. 3 1 0 3 0 7
RUBBERMAID INCORPORATED 1 1 2 2 1 7
TAPCO INTERNATIONAL CORPORATION 2 2 1 1 1 7
ANDERSEN CORPORATION 1 2 1 1 1 6
CONSTRUCTION SPECIALTIES INC. 0 3 2 1 0 6
CRANE PLASTICS COMPANY LIMITED PARTNERSHIP 0 1 3 0 2 6
GEOMETRICA, INC. 5 1 0 0 0 6
SOLATUBE INTERNATIONAL, INC. 3 3 0 0 0 6
UNILIN BEHEER BV, BESLOTEN VENNOOTSCHAP 0 1 0 2 3 6
AEGIS METAL FRAMING LLC 0 4 1 0 0 5
CANON KABUSHIKI KAISHA 3 1 1 0 0 5
CARDINAL IG COMPANY 0 0 2 2 1 5
DAYTON SUPERIOR CORPORATION 0 0 1 2 2 5
FISCHERWERKE ARTUR FISCHER GMBH & CO. KG 1 1 0 1 2 5
FOSTER-MILLER, INC. 1 2 1 0 1 5
GENERAL ELECTRIC COMPANY 2 0 0 1 2 5
HENKEL CORPORATION 3 1 1 0 0 5
INTERKAL, INC. 3 1 0 0 1 5
L.B. (PLASTICS) LIMITED 3 2 0 0 0 5
LOCKHEED MARTIN CORPORATION 1 1 1 1 1 5
NIPPON STEEL CORP. 2 0 1 2 0 5
PREMARK RWP HOLDINGS, INC. 1 3 0 1 0 5
PRO SHOP PLANS CO., INC. 1 1 2 0 1 5
SASHLITE, LLC. 0 0 2 2 1 5
SOLITE CORPORATION 1 1 1 1 1 5
SUPER SACK MANUFACTURING CORPORATION 0 2 1 1 1 5
THE STEEL NETWORK, INC. 0 0 1 2 2 5
UNITED STATES OF AMERICA, NAVY 1 2 0 0 2 5
VALMONT INDUSTRIES INC. 0 0 2 1 2 5
ZONE FOUR, LLC 0 2 2 1 0 5


PTMB Contacts

Questions regarding these reports should be directed to:

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

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

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


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