~Individually Owned Patent |
117 |
124 |
84 |
93 |
85 |
503 |
DEERE + COMPANY |
23 |
59 |
52 |
68 |
66 |
268 |
PIONEER HI-BRED INTERNATIONAL, INC. |
39 |
57 |
41 |
46 |
51 |
234 |
ROCKWELL COLLINS, INC. |
23 |
44 |
63 |
52 |
41 |
223 |
STINE SEED FARM, INC. |
10 |
47 |
6 |
25 |
37 |
125 |
IOWA STATE UNIVERSITY RESEARCH FOUNDATION INC. |
33 |
24 |
17 |
23 |
24 |
121 |
UNIVERSITY OF IOWA RESEARCH FOUNDATION |
13 |
38 |
21 |
28 |
16 |
116 |
MAYTAG CORPORATION |
16 |
12 |
17 |
24 |
29 |
98 |
GATEWAY 2000, INC. |
11 |
16 |
27 |
19 |
16 |
89 |
VERMEER MANUFACTURING COMPANY, INC. |
5 |
7 |
18 |
12 |
14 |
56 |
FISHER CONTROLS INTERNATIONAL, INC. |
16 |
9 |
8 |
7 |
14 |
54 |
INTERMEC IP CORP. |
25 |
13 |
5 |
3 |
3 |
49 |
LISLE CORPORATION |
5 |
8 |
9 |
11 |
8 |
41 |
CASE CORPORATION |
4 |
7 |
7 |
17 |
4 |
39 |
SQUARE D COMPANY |
4 |
9 |
8 |
13 |
4 |
38 |
SAUER-DANFOSS INC. |
0 |
12 |
9 |
9 |
6 |
36 |
TOWNSEND ENGINEERING COMPANY |
7 |
8 |
3 |
11 |
2 |
31 |
GRAIN PROCESSING CORPORATION |
4 |
2 |
9 |
7 |
7 |
29 |
RITE-HITE HOLDING CORPORATION |
5 |
5 |
4 |
6 |
3 |
23 |
CEDARAPIDS, INC. |
10 |
2 |
2 |
4 |
0 |
18 |
CRYSTAL GROUP INC |
0 |
3 |
5 |
2 |
6 |
16 |
HOLDEN'S FOUNDATION SEEDS, INC. |
3 |
9 |
1 |
0 |
2 |
15 |
LITTON SYSTEMS INC. |
3 |
2 |
4 |
2 |
4 |
15 |
ALCOA INC. |
1 |
2 |
3 |
3 |
5 |
14 |
TRI/MARK CORPORATION |
0 |
3 |
3 |
3 |
5 |
14 |
ASGROW SEED CO. LLC |
3 |
4 |
6 |
0 |
0 |
13 |
MCI COMMUNICATIONS CORP. |
2 |
5 |
4 |
2 |
0 |
13 |
MUSCO CORPORATION |
2 |
3 |
4 |
0 |
4 |
13 |
GENESIS SYSTEMS GROUP, LTD. |
2 |
4 |
4 |
0 |
2 |
12 |
HON TECHNOLOGY INC. |
0 |
1 |
0 |
4 |
7 |
12 |
HUNTER'S SPECIALTIES, INC. |
3 |
3 |
0 |
3 |
3 |
12 |
HWH CORPORATION |
2 |
1 |
1 |
4 |
4 |
12 |
ROCKWELL SCIENCE CENTER, LLC |
8 |
4 |
0 |
0 |
0 |
12 |
DEKALB GENETICS CORPORATION |
6 |
3 |
1 |
1 |
0 |
11 |
UNITED STATES OF AMERICA, DEPARTMENT OF AGRICULTURE |
3 |
2 |
1 |
3 |
2 |
11 |
BARNSTEAD THERMOLYNE CORPORATION |
2 |
3 |
4 |
1 |
0 |
10 |
THERMAL DYNAMICS, INC. |
0 |
1 |
3 |
4 |
2 |
10 |
U.S. MANUFACTURING INC. |
3 |
2 |
5 |
0 |
0 |
10 |
WORLDCOM, INC. |
0 |
0 |
5 |
2 |
3 |
10 |
AMANA COMPANY L.P. |
7 |
2 |
0 |
0 |
0 |
9 |
XILINX, INC. |
0 |
0 |
2 |
3 |
4 |
9 |
AMERICAN SPORTS INTERNATIONAL, LTD. |
2 |
1 |
3 |
1 |
1 |
8 |
BROADCOM CORPORATION |
0 |
0 |
0 |
3 |
5 |
8 |
COMPRESSOR CONTROLS CORP. |
1 |
3 |
1 |
1 |
2 |
8 |
E. I. DU PONT DE NEMOURS AND COMPANY |
3 |
3 |
0 |
1 |
1 |
8 |
GARY W. CLEM, INC. |
0 |
4 |
1 |
1 |
2 |
8 |
KEMIN INDUSTRIES, INC. |
2 |
3 |
2 |
0 |
1 |
8 |
SAUER, INC. |
5 |
3 |
0 |
0 |
0 |
8 |
CARGILL, INC. |
1 |
0 |
1 |
3 |
2 |
7 |
CONEXANT SYSTEMS, INC. |
2 |
3 |
1 |
1 |
0 |
7 |
EBSCO INDUSTRIES, INC. |
0 |
3 |
2 |
1 |
1 |
7 |
INTERNATIONAL PAPER CO. |
1 |
1 |
0 |
5 |
0 |
7 |
MCI WORLDCOM, INC. |
2 |
1 |
4 |
0 |
0 |
7 |
PELLA CORPORATION |
0 |
3 |
0 |
1 |
3 |
7 |
ADVANTA U.S.A., INC. |
0 |
0 |
0 |
2 |
4 |
6 |
CUSTOM-PAK, INCORPORATED |
0 |
1 |
2 |
2 |
1 |
6 |
JAM'N FITNESS CORP. |
1 |
2 |
3 |
0 |
0 |
6 |
LINK MFG., LTD. |
1 |
3 |
0 |
0 |
2 |
6 |
NATIONAL COMPUTER SYSTEMS, INC. |
2 |
4 |
0 |
0 |
0 |
6 |
POLARIS INDUSTRIES, INC. |
0 |
0 |
1 |
1 |
4 |
6 |
VIKING PUMP INC. |
2 |
1 |
1 |
1 |
1 |
6 |
WILIAN HOLDING COMPANY |
0 |
1 |
1 |
3 |
1 |
6 |
AGRIGENETICS, INC. |
0 |
0 |
2 |
3 |
0 |
5 |
DECISIONMARK CORP. |
1 |
1 |
0 |
0 |
3 |
5 |
EMCO ENTERPRISES, INC. |
1 |
3 |
0 |
0 |
1 |
5 |
HENDERSON MANUFACTURING CO. |
2 |
0 |
1 |
1 |
1 |
5 |
INLAND FINANCE COMPANY |
1 |
1 |
1 |
1 |
1 |
5 |
IPSCO ENTERPRISES, INC. |
0 |
1 |
2 |
1 |
1 |
5 |
KNESS MANUFACTURING CO., INC. |
1 |
2 |
0 |
1 |
1 |
5 |
MODERNFOLD, INC. |
0 |
0 |
1 |
2 |
2 |
5 |
SIRF TECHNOLOGY, INC. |
0 |
0 |
1 |
3 |
1 |
5 |
SKYWORKS SOLUTIONS, INC. |
0 |
0 |
0 |
1 |
4 |
5 |
VECTOR CORPORATION |
1 |
0 |
0 |
1 |
3 |
5 |
WATERLOO INDUSTRIES |
1 |
0 |
2 |
0 |
2 |
5 |