E. I. DU PONT DE NEMOURS AND COMPANY |
176 |
190 |
170 |
160 |
123 |
819 |
~Individually Owned Patent |
32 |
33 |
32 |
34 |
33 |
164 |
DUPONT PHARMACEUTICALS COMPANY |
1 |
17 |
22 |
21 |
1 |
62 |
HERCULES INCORPORATED |
12 |
8 |
16 |
19 |
7 |
62 |
W. L. GORE & ASSSOCIATES, INC. |
25 |
11 |
3 |
1 |
1 |
41 |
CIBA SPECIALTY CHEMICALS CORPORATION |
10 |
8 |
10 |
6 |
5 |
39 |
RODEL HOLDINGS INC. |
0 |
0 |
9 |
9 |
18 |
36 |
DADE BEHRING INC. |
6 |
7 |
6 |
5 |
4 |
28 |
ZENECA LIMITED |
7 |
10 |
7 |
2 |
1 |
27 |
MONTELL NORTH AMERICA INC. |
5 |
6 |
11 |
3 |
0 |
25 |
BRISTOL-MYERS SQUIBB PHARMA COMPANY |
0 |
0 |
0 |
1 |
22 |
23 |
HEWLETT-PACKARD COMPANY |
5 |
9 |
6 |
0 |
0 |
20 |
AGILENT TECHNOLOGIES, INC. |
0 |
0 |
4 |
4 |
10 |
18 |
ELSICON, INC. |
1 |
4 |
5 |
3 |
4 |
17 |
UNIVERSITY OF DELAWARE |
4 |
1 |
3 |
3 |
6 |
17 |
LANXIDE TECHNOLOGY COMPANY, LP |
9 |
3 |
2 |
2 |
0 |
16 |
DU PONT MERCK PHARMACEUTICAL COMPANY |
13 |
2 |
0 |
0 |
0 |
15 |
DUPONT DOW ELASTOMERS, L.L.C. |
0 |
0 |
2 |
5 |
7 |
14 |
GORE ENTERPRISE HOLDINGS, INC. |
0 |
3 |
2 |
6 |
2 |
13 |
DENTSPLY RESEARCH + DEVELOPMENT CORP. |
1 |
5 |
1 |
2 |
3 |
12 |
DENCO, INC. |
1 |
4 |
3 |
1 |
1 |
10 |
ARCO CHEMICAL TECHNOLOGY, L.P. |
2 |
2 |
0 |
2 |
3 |
9 |
SOUTHCO INC. |
2 |
3 |
1 |
2 |
1 |
9 |
ASTROPOWER, INC. |
1 |
0 |
2 |
2 |
3 |
8 |
BEAVER CREEK CONCEPTS, INC. |
0 |
0 |
0 |
4 |
4 |
8 |
CONOCO, INC. |
0 |
0 |
1 |
2 |
5 |
8 |
DIRECT RADIOGRAPHY CORP. |
0 |
0 |
3 |
0 |
5 |
8 |
MACDERMID IMAGING TECHNOLOGY, INC. |
5 |
3 |
0 |
0 |
0 |
8 |
SPEAKMAN COMPANY |
1 |
3 |
2 |
0 |
2 |
8 |
ALLIANT TECHSYSTEMS INC. |
4 |
2 |
0 |
0 |
1 |
7 |
APPLIED EXTRUSION TECHNOLOGIES, INC. |
1 |
0 |
2 |
1 |
3 |
7 |
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE |
2 |
2 |
0 |
1 |
2 |
7 |
ASTRAZENECA AB |
0 |
0 |
0 |
1 |
5 |
6 |
FOAMEX LP |
1 |
0 |
2 |
1 |
2 |
6 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
2 |
1 |
2 |
0 |
1 |
6 |
MACDERMID, INC. |
0 |
3 |
0 |
2 |
1 |
6 |
PLAYTEX PRODUCTS, INC. |
1 |
1 |
2 |
1 |
1 |
6 |
COMPACT MEMBRANE SYSTEMS, INC |
0 |
4 |
1 |
0 |
0 |
5 |
CORDANT TECHNOLOGIES INC. |
2 |
0 |
1 |
2 |
0 |
5 |
CSB ENTERPRISES, INC. |
2 |
2 |
1 |
0 |
0 |
5 |
EDGECRAFT CORP. |
0 |
1 |
2 |
2 |
0 |
5 |
HAMMOND GROUP, INC. |
0 |
0 |
2 |
1 |
2 |
5 |
KIMBERLY-CLARK WORLDWIDE, INC. |
0 |
1 |
2 |
0 |
2 |
5 |
LAB PRODUCTS, INC. |
0 |
0 |
1 |
1 |
3 |
5 |
METAL MASTERS FOOD SERVICE EQUIPMENT CO., INC. |
1 |
2 |
0 |
1 |
1 |
5 |
MONTELL TECHNOLOGY COMPANY BV |
0 |
0 |
1 |
4 |
0 |
5 |
R.P.C. INC. |
0 |
0 |
1 |
4 |
0 |
5 |
RODEL INC. |
4 |
1 |
0 |
0 |
0 |
5 |
XYMID L.L.C. |
0 |
0 |
1 |
2 |
2 |
5 |