U.S. PATENT AND TRADEMARK OFFICE
Information Products Division
Technology Assessment and Forecast (TAF) Branch

Patenting By Geographic Region (State and Country), Breakout By Organization
Count of 1997 - 2001 Utility Patent Grants By Calendar Year of Grant

[Explanation of Data]

Rank Ordered Listing of Organizations Receiving 5 or More Utility Patents During the Period
Originating From

DELAWARE

(patent origin is determined by the residence of the first-named inventor)
 
First-Named Assignee 1997 1998 1999 2000 2001 Total
E. I. DU PONT DE NEMOURS AND COMPANY 156 176 190 170 160 852
~Individually Owned Patent 23 32 33 32 34 154
HERCULES INCORPORATED 23 12 8 16 19 78
DUPONT PHARMACEUTICALS COMPANY 0 1 17 22 21 61
W. L. GORE & ASSSOCIATES, INC. 18 25 11 3 1 58
ZENECA LIMITED 10 7 10 7 2 36
CIBA SPECIALTY CHEMICALS CORPORATION 0 10 8 10 6 34
LANXIDE TECHNOLOGY COMPANY, LP 15 9 3 2 2 31
MONTELL NORTH AMERICA INC. 6 5 6 11 3 31
DU PONT MERCK PHARMACEUTICAL COMPANY 14 13 2 0 0 29
DADE BEHRING INC. 0 6 7 6 5 24
HEWLETT-PACKARD COMPANY 3 5 9 6 0 23
RODEL HOLDINGS INC. 0 0 0 9 9 18
UNIVERSITY OF DELAWARE 3 4 1 3 3 14
ELSICON, INC. 0 1 4 5 3 13
ARCO CHEMICAL TECHNOLOGY, L.P. 5 2 2 0 2 11
DENCO, INC. 2 1 4 3 1 11
GORE ENTERPRISE HOLDINGS, INC. 0 0 3 2 6 11
MACDERMID IMAGING TECHNOLOGY, INC. 3 5 3 0 0 11
DENTSPLY RESEARCH + DEVELOPMENT CORP. 1 1 5 1 2 10
SOUTHCO INC. 1 2 3 1 2 9
AGILENT TECHNOLOGIES, INC. 0 0 0 4 4 8
DUPONT DOW ELASTOMERS, L.L.C. 0 0 0 2 5 7
RODEL INC. 2 4 1 0 0 7
ALLIANT TECHSYSTEMS INC. 0 4 2 0 0 6
ASTROPOWER, INC. 1 1 0 2 2 6
EDGECRAFT CORP. 1 0 1 2 2 6
PLAYTEX PRODUCTS, INC. 1 1 1 2 1 6
SPEAKMAN COMPANY 0 1 3 2 0 6
THE NEMOURS FOUNDATION 3 2 1 0 0 6
COMPACT MEMBRANE SYSTEMS, INC 0 0 4 1 0 5
CORDANT TECHNOLOGIES INC. 0 2 0 1 2 5
CSB ENTERPRISES, INC. 0 2 2 1 0 5
DADE INTERNATIONAL INC. 1 4 0 0 0 5
FOAMEX LP 1 1 0 2 1 5
INTERNATIONAL BUSINESS MACHINES CORPORATION 0 2 1 2 0 5
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 0 2 2 0 1 5
MACDERMID, INC. 0 0 3 0 2 5
METAL MASTERS FOOD SERVICE EQUIPMENT CO., INC. 1 1 2 0 1 5
MONTELL TECHNOLOGY COMPANY BV 0 0 0 1 4 5
R.P.C. INC. 0 0 0 1 4 5
STERLING DIAGNOSTIC IMAGING, INC. 3 2 0 0 0 5
WESTVACO CORPORATION 1 0 3 1 0 5



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Last Modified: April 9, 2002