~Individually Owned Patent |
32 |
39 |
31 |
39 |
38 |
179 |
XEROX CORPORATION |
20 |
22 |
16 |
6 |
13 |
77 |
MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG |
4 |
12 |
11 |
19 |
11 |
57 |
SEIKO EPSON CORPORATION |
7 |
5 |
14 |
11 |
17 |
54 |
CIBA SPECIALTY CHEMICALS CORPORATION |
12 |
7 |
14 |
10 |
3 |
46 |
HALLIBURTON ENERGY SERVICES, INC. |
2 |
5 |
9 |
13 |
9 |
38 |
EASTMAN KODAK COMPANY |
13 |
7 |
3 |
7 |
5 |
35 |
ENGELHARD CORPORATION |
5 |
8 |
9 |
7 |
4 |
33 |
AVECIA LIMITED |
0 |
6 |
7 |
10 |
9 |
32 |
CANON KABUSHIKI KAISHA |
2 |
7 |
5 |
9 |
9 |
32 |
HEWLETT-PACKARD COMPANY |
10 |
8 |
8 |
5 |
0 |
31 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
0 |
0 |
0 |
12 |
17 |
29 |
BAYER AKTIENGESELLSCHAFT |
7 |
7 |
4 |
6 |
4 |
28 |
CABOT CORPORATION |
2 |
3 |
10 |
5 |
6 |
26 |
CLARIANT GMBH |
2 |
6 |
11 |
4 |
3 |
26 |
MITSUBISHI PENCIL KABUSHIKI KAISHA |
3 |
4 |
3 |
8 |
6 |
24 |
SUN CHEMICAL CORPORATION |
0 |
4 |
7 |
6 |
4 |
21 |
FUJI PHOTO FILM CO., LTD |
1 |
1 |
3 |
5 |
10 |
20 |
W. R. GRACE & CO.-CONN. |
3 |
5 |
2 |
3 |
5 |
18 |
BASF AKTIENGESELLSCHAFT |
8 |
2 |
3 |
2 |
2 |
17 |
3M INNOVATIVE PROPERTIES COMPANY |
4 |
1 |
4 |
3 |
3 |
15 |
DEGUSSA AKTIENGESELLSCHAFT |
2 |
1 |
2 |
3 |
7 |
15 |
SAKURA COLOR PRODUCTS CORPORATION |
3 |
2 |
4 |
3 |
3 |
15 |
IMERYS PIGMENTS, INC. |
2 |
2 |
2 |
5 |
3 |
14 |
RICOH COMPANY, LTD. |
3 |
2 |
0 |
4 |
5 |
14 |
UNITED STATES GYPSUM COMPANY |
0 |
2 |
8 |
1 |
3 |
14 |
BAYER CORPORATION |
5 |
2 |
4 |
1 |
0 |
12 |
MILLIKEN & COMPANY |
3 |
0 |
3 |
6 |
0 |
12 |
RHODIA CHIMIE |
3 |
4 |
3 |
0 |
2 |
12 |
ZENECA LIMITED |
3 |
9 |
0 |
0 |
0 |
12 |
AKZO NOBEL NV |
1 |
1 |
4 |
2 |
3 |
11 |
FUJI XEROX CO., LTD. |
5 |
1 |
3 |
1 |
1 |
11 |
JENERIC/PENTRON INCORPORATED |
3 |
2 |
2 |
2 |
2 |
11 |
MBT HOLDING AG |
2 |
4 |
4 |
0 |
1 |
11 |
SHIN ETSU CHEMICAL CO., LTD. |
1 |
2 |
2 |
1 |
5 |
11 |
TODA KOGYO CORP. |
4 |
2 |
1 |
4 |
0 |
11 |
TOYO INK MANUFACTURING CO., LTD. |
3 |
1 |
2 |
3 |
2 |
11 |
DAINICHISEIKA COLOUR & CHEMICALS MFG. CO., LTD. |
0 |
2 |
4 |
2 |
2 |
10 |
KIMBERLY-CLARK WORLDWIDE, INC. |
2 |
2 |
3 |
2 |
1 |
10 |
MILLENNIUM INORGANIC CHEMICALS, INC. |
0 |
2 |
2 |
4 |
2 |
10 |
DEGUSSA-HUELS AKTIENGESELLSCHAFT |
3 |
2 |
3 |
0 |
1 |
9 |
E. I. DU PONT DE NEMOURS AND COMPANY |
2 |
1 |
2 |
0 |
4 |
9 |
J. M. HUBER CORPORATION |
3 |
2 |
3 |
1 |
0 |
9 |
KAO KABUSHIKI KAISHA (KAO CORPORATION) |
3 |
2 |
0 |
1 |
3 |
9 |
LEXMARK INTERNATIONAL, INC. |
0 |
4 |
1 |
3 |
1 |
9 |
NATIONAL STARCH AND CHEMICAL INVESTMENT HOLDING CORPORATION |
0 |
5 |
1 |
2 |
1 |
9 |
ASAHI GLASS COMPANY, LTD. |
1 |
1 |
2 |
2 |
2 |
8 |
BEN Q CORPORATION |
0 |
0 |
0 |
2 |
6 |
8 |
CLARIANT FINANCE (BVI) LIMITED |
1 |
1 |
2 |
2 |
2 |
8 |
NIPPON KAYAKU KABUSHIKI KAISHA |
1 |
0 |
2 |
4 |
1 |
8 |
PPG INDUSTRIES OHIO INC. |
3 |
2 |
1 |
1 |
1 |
8 |
RISO KAGAKU CORPORATION |
1 |
1 |
1 |
3 |
2 |
8 |
BROTHER KOGYO KABUSHIKI KAISHA |
1 |
1 |
0 |
0 |
5 |
7 |
HERCULES INCORPORATED |
5 |
2 |
0 |
0 |
0 |
7 |
MARCONI DATA SYSTEMS, INC. |
3 |
4 |
0 |
0 |
0 |
7 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
0 |
1 |
1 |
5 |
0 |
7 |
THIELE KAOLIN COMPANY |
0 |
2 |
3 |
1 |
1 |
7 |
ADVANCED TECHNOLOGY MATERIALS, INC. |
1 |
1 |
3 |
1 |
0 |
6 |
CERDEC AKTIENGESELLSCHAFT KERAMISCHE FARBEN |
1 |
5 |
0 |
0 |
0 |
6 |
DOW CORNING CORPORATION |
3 |
0 |
1 |
2 |
0 |
6 |
FERRO-CORPORATION |
0 |
1 |
3 |
1 |
1 |
6 |
JAMES HARDIE RESEARCH PTY LIMITED |
1 |
0 |
1 |
2 |
2 |
6 |
LAFARGE CANADA INC. |
0 |
0 |
2 |
0 |
4 |
6 |
MARATHON ASHLAND PETROLEUM LLC |
2 |
1 |
1 |
0 |
2 |
6 |
MITSUBISHI CHEMICAL CORPORATION |
2 |
0 |
1 |
1 |
2 |
6 |
NIPPON SHOKUBAI CO., LTD. |
1 |
2 |
1 |
1 |
1 |
6 |
UNITED STATES OF AMERICA, NAVY |
0 |
0 |
1 |
5 |
0 |
6 |
AIR PRODUCTS AND CHEMICALS, INC. |
2 |
1 |
0 |
2 |
0 |
5 |
ALLIED-SIGNAL INC. |
3 |
2 |
0 |
0 |
0 |
5 |
BASF CORP. |
1 |
1 |
1 |
1 |
1 |
5 |
DMC2 DEGUSSA METALS CATALYSTS CERDEC AG |
0 |
1 |
2 |
2 |
0 |
5 |
FUJIMI INCORPORATED |
2 |
2 |
1 |
0 |
0 |
5 |
GARDNER ASPHALT CORPORATION |
1 |
0 |
0 |
1 |
3 |
5 |
ITALCEMENTI S.P.A. |
2 |
0 |
2 |
1 |
0 |
5 |
NATIONAL GYPSUM PROPERTIES, LLC |
0 |
0 |
1 |
1 |
3 |
5 |
ROHM AND HAAS COMPANY |
0 |
2 |
1 |
1 |
1 |
5 |
SHARP LABORATORIES OF AMERICA, INC. |
0 |
0 |
1 |
3 |
1 |
5 |
SHIPLEY COMPANY INC. |
0 |
0 |
1 |
1 |
3 |
5 |
SHOWA DENKO KABUSHIKI KAISHA |
0 |
3 |
0 |
1 |
1 |
5 |
SIKA AG, VORM. KASPAR WINKLER & CO. |
1 |
0 |
2 |
1 |
1 |
5 |