~Individually Owned Patent |
39 |
44 |
32 |
39 |
31 |
185 |
XEROX CORPORATION |
20 |
20 |
20 |
22 |
16 |
98 |
CIBA SPECIALTY CHEMICALS CORPORATION |
17 |
18 |
12 |
7 |
14 |
68 |
HEWLETT-PACKARD COMPANY |
12 |
11 |
10 |
8 |
8 |
49 |
MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG |
8 |
4 |
4 |
12 |
11 |
39 |
SEIKO EPSON CORPORATION |
6 |
6 |
7 |
5 |
14 |
38 |
EASTMAN KODAK COMPANY |
6 |
7 |
13 |
7 |
3 |
36 |
ENGELHARD CORPORATION |
5 |
8 |
5 |
8 |
9 |
35 |
BAYER AKTIENGESELLSCHAFT |
7 |
7 |
7 |
7 |
4 |
32 |
ZENECA LIMITED |
9 |
7 |
3 |
9 |
0 |
28 |
CABOT CORPORATION |
7 |
5 |
2 |
3 |
10 |
27 |
BASF AKTIENGESELLSCHAFT |
6 |
6 |
8 |
2 |
3 |
25 |
CANON KABUSHIKI KAISHA |
5 |
5 |
2 |
7 |
5 |
24 |
BAYER CORPORATION |
7 |
5 |
5 |
2 |
4 |
23 |
HALLIBURTON ENERGY SEVICES, INC. |
2 |
4 |
2 |
5 |
9 |
22 |
MBT HOLDING AG |
7 |
5 |
2 |
4 |
4 |
22 |
CLARIANT GMBH |
0 |
2 |
2 |
6 |
11 |
21 |
W. R. GRACE & CO.-CONN. |
10 |
1 |
3 |
5 |
2 |
21 |
BROTHER KOGYO KABUSHIKI KAISHA |
10 |
7 |
1 |
1 |
0 |
19 |
TOYO INK MANUFACTURING CO., LTD. |
6 |
7 |
3 |
1 |
2 |
19 |
E. I. DU PONT DE NEMOURS AND COMPANY |
9 |
2 |
2 |
1 |
2 |
16 |
MITSUBISHI PENCIL KABUSHIKI KAISHA |
1 |
4 |
3 |
4 |
3 |
15 |
HERCULES INCORPORATED |
2 |
5 |
5 |
2 |
0 |
14 |
RHONE-POULENC CHIMIE |
7 |
6 |
0 |
1 |
0 |
14 |
AVECIA LIMITED |
0 |
0 |
0 |
6 |
7 |
13 |
FUJI XEROX CO., LTD. |
1 |
3 |
5 |
1 |
3 |
13 |
RISO KAGAKU CORPORATION |
7 |
3 |
1 |
1 |
1 |
13 |
SUN CHEMICAL CORPORATION |
1 |
1 |
0 |
4 |
7 |
13 |
UNITED STATES GYPSUM COMPANY |
2 |
0 |
0 |
2 |
8 |
12 |
DOW CORNING CORPORATION |
4 |
3 |
3 |
0 |
1 |
11 |
J. M. HUBER CORPORATION |
3 |
0 |
3 |
2 |
3 |
11 |
KIMBERLY-CLARK WORLDWIDE, INC. |
2 |
2 |
2 |
2 |
3 |
11 |
MITSUBISHI CHEMICAL CORPORATION |
5 |
3 |
2 |
0 |
1 |
11 |
RICOH COMPANY, LTD. |
1 |
5 |
3 |
2 |
0 |
11 |
SAKURA COLOR PRODUCTS CORPORATION |
2 |
0 |
3 |
2 |
4 |
11 |
3M INNOVATIVE PROPERTIES COMPANY |
0 |
1 |
4 |
1 |
4 |
10 |
HOECHST AKTIENGESELLSCHAFT |
9 |
1 |
0 |
0 |
0 |
10 |
RHODIA CHIMIE |
0 |
0 |
3 |
4 |
3 |
10 |
VIDEOJET SYSTEMS INTERNATIONAL, INC. |
4 |
4 |
2 |
0 |
0 |
10 |
CERDEC AKTIENGESELLSCHAFT KERAMISCHE FARBEN |
2 |
1 |
1 |
5 |
0 |
9 |
KAO KABUSHIKI KAISHA (KAO CORPORATION) |
2 |
2 |
3 |
2 |
0 |
9 |
MILLIKEN & COMPANY |
0 |
3 |
3 |
0 |
3 |
9 |
AKZO NOBEL NV |
1 |
1 |
1 |
1 |
4 |
8 |
ALLIED-SIGNAL INC. |
3 |
0 |
3 |
2 |
0 |
8 |
DAINICHISEIKA COLOUR & CHEMICALS MFG. CO., LTD. |
0 |
2 |
0 |
2 |
4 |
8 |
DEGUSSA-HUELS AKTIENGESELLSCHAFT |
0 |
0 |
3 |
2 |
3 |
8 |
FUJI PHOTO FILM CO., LTD |
2 |
1 |
1 |
1 |
3 |
8 |
JENERIC/PENTRON INCORPORATED |
0 |
1 |
3 |
2 |
2 |
8 |
MARATHON ASHLAND PETROLEUM LLC |
0 |
4 |
2 |
1 |
1 |
8 |
NATIONAL STARCH AND CHEMICAL INVESTMENT HOLDING CORPORATION |
1 |
1 |
0 |
5 |
1 |
8 |
PILOT INK CO., LTD. |
1 |
4 |
1 |
1 |
1 |
8 |
SHIN ETSU CHEMICAL CO., LTD. |
2 |
1 |
1 |
2 |
2 |
8 |
THIELE KAOLIN COMPANY |
1 |
2 |
0 |
2 |
3 |
8 |
TODA KOGYO CORP. |
0 |
1 |
4 |
2 |
1 |
8 |
ADVANCED TECHNOLOGY MATERIALS, INC. |
1 |
1 |
1 |
1 |
3 |
7 |
ASAHI GLASS COMPANY, LTD. |
2 |
1 |
1 |
1 |
2 |
7 |
DEGUSSA AKTIENGESELLSCHAFT |
2 |
0 |
2 |
1 |
2 |
7 |
ITALCEMENTI S.P.A. |
1 |
2 |
2 |
0 |
2 |
7 |
LAFARGE CANADA INC. |
3 |
2 |
0 |
0 |
2 |
7 |
LEXMARK INTERNATIONAL, INC. |
1 |
1 |
0 |
4 |
1 |
7 |
MARCONI DATA SYSTEMS, INC. |
0 |
0 |
3 |
4 |
0 |
7 |
NORIAN CORPORATION |
3 |
2 |
1 |
0 |
1 |
7 |
PPG INDUSTRIES OHIO INC. |
0 |
1 |
3 |
2 |
1 |
7 |
SONY CORPORATION |
0 |
5 |
2 |
0 |
0 |
7 |
AIR PRODUCTS AND CHEMICALS, INC. |
3 |
0 |
2 |
1 |
0 |
6 |
BASF CORP. |
1 |
2 |
1 |
1 |
1 |
6 |
ECC INTERNATIONAL LIMITED |
3 |
3 |
0 |
0 |
0 |
6 |
FUJIMI INCORPORATED |
0 |
1 |
2 |
2 |
1 |
6 |
HITACHI MAXELL, LTD. |
1 |
2 |
3 |
0 |
0 |
6 |
IMERYS PIGMENTS, INC. |
0 |
0 |
2 |
2 |
2 |
6 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
3 |
3 |
0 |
0 |
0 |
6 |
MINOLTA CAMERA CO., LTD. |
1 |
4 |
0 |
1 |
0 |
6 |
NATIONAL GYPSUM COMPANY |
2 |
2 |
0 |
2 |
0 |
6 |
ROHM AND HAAS COMPANY |
2 |
1 |
0 |
2 |
1 |
6 |
TOSHIBA CORPORATION |
0 |
3 |
2 |
1 |
0 |
6 |
AMCOL INTERNATIONAL CORPORATION |
2 |
1 |
1 |
0 |
1 |
5 |
AMERICAN DENTAL ASSOCIATION HEALTH FOUNDATION |
0 |
3 |
0 |
1 |
1 |
5 |
BINNEY & SMITH |
0 |
1 |
3 |
1 |
0 |
5 |
CLARIANT FINANCE (BVI) LIMITED |
0 |
1 |
1 |
1 |
2 |
5 |
DOW CORNING TORAY SILICONE COMPANY LIMITED |
1 |
1 |
1 |
0 |
2 |
5 |
FMC CORPORATION |
2 |
1 |
1 |
0 |
1 |
5 |
HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN(HENKEL KGAA) |
3 |
0 |
0 |
2 |
0 |
5 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
1 |
1 |
1 |
1 |
1 |
5 |
J. S. STAEDTLER GMBH & CO. |
1 |
3 |
1 |
0 |
0 |
5 |
MARKEM CORPORATION |
0 |
4 |
1 |
0 |
0 |
5 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
1 |
1 |
0 |
3 |
0 |
5 |
MINERAL RESOURCE TECHNOLOGIES, LLC |
2 |
1 |
0 |
1 |
1 |
5 |
NIPPON SHOKUBAI CO., LTD. |
0 |
1 |
1 |
2 |
1 |
5 |
PPG INDUSTRIES INC. |
4 |
1 |
0 |
0 |
0 |
5 |
SERMATECH INTERNATIONAL, INC. |
0 |
1 |
2 |
1 |
1 |
5 |
SYMETRIX CORPORATION |
4 |
0 |
1 |
0 |
0 |
5 |
TOKYO OHKA KOGYO CO., LTD. |
2 |
1 |
0 |
2 |
0 |
5 |