~Individually Owned Patent |
39 |
31 |
39 |
38 |
24 |
171 |
XEROX CORPORATION |
22 |
16 |
6 |
13 |
8 |
65 |
MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG |
12 |
11 |
19 |
11 |
7 |
60 |
SEIKO EPSON CORPORATION |
5 |
14 |
11 |
17 |
10 |
57 |
CIBA SPECIALTY CHEMICALS CORPORATION |
7 |
14 |
10 |
3 |
10 |
44 |
HALLIBURTON ENERGY SERVICES, INC. |
5 |
9 |
13 |
9 |
7 |
43 |
AVECIA LIMITED |
6 |
7 |
10 |
9 |
3 |
35 |
CANON KABUSHIKI KAISHA |
7 |
5 |
9 |
9 |
4 |
34 |
ENGELHARD CORPORATION |
8 |
9 |
7 |
4 |
2 |
30 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
0 |
0 |
12 |
17 |
1 |
30 |
CABOT CORPORATION |
3 |
10 |
5 |
6 |
5 |
29 |
CLARIANT GMBH |
6 |
11 |
4 |
3 |
4 |
28 |
EASTMAN KODAK COMPANY |
7 |
3 |
7 |
5 |
5 |
27 |
FUJI PHOTO FILM CO., LTD |
1 |
3 |
5 |
10 |
6 |
25 |
BAYER AKTIENGESELLSCHAFT |
7 |
4 |
6 |
4 |
1 |
22 |
MITSUBISHI PENCIL KABUSHIKI KAISHA |
4 |
3 |
8 |
6 |
1 |
22 |
SUN CHEMICAL CORPORATION |
4 |
7 |
6 |
4 |
1 |
22 |
HEWLETT-PACKARD COMPANY |
8 |
8 |
5 |
0 |
0 |
21 |
DEGUSSA AKTIENGESELLSCHAFT |
1 |
2 |
3 |
7 |
5 |
18 |
W. R. GRACE & CO.-CONN. |
5 |
2 |
3 |
5 |
3 |
18 |
BASF AKTIENGESELLSCHAFT |
2 |
3 |
2 |
2 |
6 |
15 |
UNITED STATES GYPSUM COMPANY |
2 |
8 |
1 |
3 |
1 |
15 |
RICOH COMPANY, LTD. |
2 |
0 |
4 |
5 |
2 |
13 |
SAKURA COLOR PRODUCTS CORPORATION |
2 |
4 |
3 |
3 |
1 |
13 |
3M INNOVATIVE PROPERTIES COMPANY |
1 |
4 |
3 |
3 |
1 |
12 |
IMERYS PIGMENTS, INC. |
2 |
2 |
5 |
3 |
0 |
12 |
LEXMARK INTERNATIONAL, INC. |
4 |
1 |
3 |
1 |
3 |
12 |
RHODIA CHIMIE |
4 |
3 |
0 |
2 |
3 |
12 |
SHIN ETSU CHEMICAL CO., LTD. |
2 |
2 |
1 |
5 |
2 |
12 |
AKZO NOBEL NV |
1 |
4 |
2 |
3 |
1 |
11 |
BEN Q CORPORATION |
0 |
0 |
2 |
6 |
3 |
11 |
E. I. DU PONT DE NEMOURS AND COMPANY |
1 |
2 |
0 |
4 |
4 |
11 |
BROTHER KOGYO KABUSHIKI KAISHA |
1 |
0 |
0 |
5 |
4 |
10 |
DAINICHISEIKA COLOUR & CHEMICALS MFG. CO., LTD. |
2 |
4 |
2 |
2 |
0 |
10 |
MILLENNIUM INORGANIC CHEMICALS, INC. |
2 |
2 |
4 |
2 |
0 |
10 |
MBT HOLDING AG |
4 |
4 |
0 |
1 |
0 |
9 |
MILLIKEN & COMPANY |
0 |
3 |
6 |
0 |
0 |
9 |
NATIONAL STARCH AND CHEMICAL INVESTMENT HOLDING CORPORATION |
5 |
1 |
2 |
1 |
0 |
9 |
TOYO INK MANUFACTURING CO., LTD. |
1 |
2 |
3 |
2 |
1 |
9 |
ZENECA LIMITED |
9 |
0 |
0 |
0 |
0 |
9 |
ASAHI GLASS COMPANY, LTD. |
1 |
2 |
2 |
2 |
1 |
8 |
CLARIANT FINANCE (BVI) LIMITED |
1 |
2 |
2 |
2 |
1 |
8 |
JENERIC/PENTRON INCORPORATED |
2 |
2 |
2 |
2 |
0 |
8 |
KAO KABUSHIKI KAISHA (KAO CORPORATION) |
2 |
0 |
1 |
3 |
2 |
8 |
KIMBERLY-CLARK WORLDWIDE, INC. |
2 |
3 |
2 |
1 |
0 |
8 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
3 |
0 |
0 |
1 |
4 |
8 |
NIPPON KAYAKU KABUSHIKI KAISHA |
0 |
2 |
4 |
1 |
1 |
8 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
1 |
1 |
5 |
0 |
1 |
8 |
BAYER CORPORATION |
2 |
4 |
1 |
0 |
0 |
7 |
FUJI XEROX CO., LTD. |
1 |
3 |
1 |
1 |
1 |
7 |
JAMES HARDIE RESEARCH PTY LIMITED |
0 |
1 |
2 |
2 |
2 |
7 |
PPG INDUSTRIES OHIO INC. |
2 |
1 |
1 |
1 |
2 |
7 |
RISO KAGAKU CORPORATION |
1 |
1 |
3 |
2 |
0 |
7 |
THIELE KAOLIN COMPANY |
2 |
3 |
1 |
1 |
0 |
7 |
TODA KOGYO CORP. |
2 |
1 |
4 |
0 |
0 |
7 |
DEGUSSA-HUELS AKTIENGESELLSCHAFT |
2 |
3 |
0 |
1 |
0 |
6 |
FERRO-CORPORATION |
1 |
3 |
1 |
1 |
0 |
6 |
J. M. HUBER CORPORATION |
2 |
3 |
1 |
0 |
0 |
6 |
KONICA CORPORATION |
0 |
1 |
0 |
1 |
4 |
6 |
LAFARGE CANADA INC. |
0 |
2 |
0 |
4 |
0 |
6 |
MITSUBISHI CHEMICAL CORPORATION |
0 |
1 |
1 |
2 |
2 |
6 |
NATIONAL GYPSUM PROPERTIES, LLC |
0 |
1 |
1 |
3 |
1 |
6 |
ROHM AND HAAS COMPANY |
2 |
1 |
1 |
1 |
1 |
6 |
SHIPLEY COMPANY INC. |
0 |
1 |
1 |
3 |
1 |
6 |
UNITED STATES OF AMERICA, NAVY |
0 |
1 |
5 |
0 |
0 |
6 |
ADVANCED TECHNOLOGY MATERIALS, INC. |
1 |
3 |
1 |
0 |
0 |
5 |
CERDEC AKTIENGESELLSCHAFT KERAMISCHE FARBEN |
5 |
0 |
0 |
0 |
0 |
5 |
DMC2 DEGUSSA METALS CATALYSTS CERDEC AG |
1 |
2 |
2 |
0 |
0 |
5 |
ILFORD IMAGING SWITZERLAND GMBH |
1 |
0 |
1 |
1 |
2 |
5 |
KANSAI PAINT CO., LTD. |
0 |
1 |
1 |
2 |
1 |
5 |
MICRON TECHNOLOGY, INC. |
1 |
1 |
1 |
1 |
1 |
5 |
NIPPON SHOKUBAI CO., LTD. |
2 |
1 |
1 |
1 |
0 |
5 |
OCE-TECHNOLOGIES, B.V. |
1 |
1 |
0 |
1 |
2 |
5 |
PITNEY-BOWES, INC. |
1 |
1 |
0 |
2 |
1 |
5 |
SHARP LABORATORIES OF AMERICA, INC. |
0 |
1 |
3 |
1 |
0 |
5 |
SHOWA DENKO KABUSHIKI KAISHA |
3 |
0 |
1 |
1 |
0 |
5 |
SICPA HOLDING, S.A. |
0 |
0 |
2 |
2 |
1 |
5 |