~Individually Owned Patent |
124 |
84 |
93 |
85 |
60 |
446 |
DEERE + COMPANY |
59 |
52 |
68 |
66 |
62 |
307 |
ROCKWELL COLLINS, INC. |
44 |
63 |
52 |
41 |
29 |
229 |
PIONEER HI-BRED INTERNATIONAL, INC. |
57 |
41 |
46 |
51 |
33 |
228 |
STINE SEED FARM, INC. |
47 |
6 |
26 |
37 |
41 |
157 |
UNIVERSITY OF IOWA RESEARCH FOUNDATION |
38 |
21 |
28 |
16 |
16 |
119 |
MAYTAG CORPORATION |
12 |
17 |
24 |
29 |
22 |
104 |
IOWA STATE UNIVERSITY RESEARCH FOUNDATION INC. |
24 |
17 |
23 |
24 |
12 |
100 |
GATEWAY 2000, INC. |
16 |
27 |
19 |
16 |
15 |
93 |
VERMEER MANUFACTURING COMPANY, INC. |
7 |
18 |
12 |
14 |
13 |
64 |
FISHER CONTROLS INTERNATIONAL, INC. |
9 |
8 |
7 |
14 |
19 |
57 |
SAUER-DANFOSS INC. |
12 |
9 |
9 |
6 |
9 |
45 |
LISLE CORPORATION |
8 |
9 |
11 |
8 |
8 |
44 |
SQUARE D COMPANY |
9 |
8 |
13 |
4 |
2 |
36 |
CASE CORPORATION |
7 |
7 |
17 |
4 |
0 |
35 |
GRAIN PROCESSING CORPORATION |
2 |
9 |
7 |
7 |
5 |
30 |
INTERMEC IP CORP. |
13 |
5 |
3 |
3 |
5 |
29 |
TOWNSEND ENGINEERING COMPANY |
8 |
3 |
11 |
2 |
5 |
29 |
RITE-HITE HOLDING CORPORATION |
5 |
4 |
6 |
3 |
8 |
26 |
CRYSTAL GROUP INC |
3 |
5 |
2 |
6 |
1 |
17 |
HON TECHNOLOGY INC. |
1 |
0 |
4 |
7 |
5 |
17 |
TRI/MARK CORPORATION |
3 |
3 |
3 |
5 |
1 |
15 |
XILINX, INC. |
0 |
2 |
3 |
4 |
6 |
15 |
BROADCOM CORPORATION |
0 |
0 |
3 |
5 |
6 |
14 |
HOLDEN'S FOUNDATION SEEDS, INC. |
9 |
1 |
0 |
2 |
2 |
14 |
MCI COMMUNICATIONS CORP. |
5 |
4 |
2 |
0 |
3 |
14 |
ALCOA INC. |
2 |
3 |
3 |
5 |
0 |
13 |
LITTON SYSTEMS INC. |
2 |
4 |
2 |
4 |
1 |
13 |
MUSCO CORPORATION |
3 |
4 |
0 |
4 |
2 |
13 |
THERMAL DYNAMICS, INC. |
1 |
3 |
4 |
2 |
3 |
13 |
HWH CORPORATION |
1 |
1 |
4 |
4 |
2 |
12 |
GENESIS SYSTEMS GROUP, L.L.C. |
4 |
4 |
0 |
2 |
1 |
11 |
POLARIS INDUSTRIES, INC. |
0 |
1 |
1 |
4 |
5 |
11 |
ASGROW SEED CO. LLC |
4 |
6 |
0 |
0 |
0 |
10 |
CEDARAPIDS, INC. |
2 |
2 |
4 |
0 |
2 |
10 |
HNI TECHNOLOGIES INC. |
0 |
0 |
0 |
0 |
10 |
10 |
HUNTER'S SPECIALTIES, INC. |
3 |
0 |
3 |
3 |
1 |
10 |
SKYWORKS SOLUTIONS, INC. |
0 |
0 |
1 |
4 |
5 |
10 |
WORLDCOM, INC. |
0 |
5 |
2 |
3 |
0 |
10 |
CNH AMERICA LLC |
0 |
0 |
0 |
1 |
8 |
9 |
GARY W. CLEM, INC. |
4 |
1 |
1 |
2 |
1 |
9 |
BARNSTEAD THERMOLYNE CORPORATION |
3 |
4 |
1 |
0 |
0 |
8 |
INTERNATIONAL PAPER CO. |
1 |
0 |
5 |
0 |
2 |
8 |
PELLA CORPORATION |
3 |
0 |
1 |
3 |
1 |
8 |
UNITED STATES OF AMERICA, DEPARTMENT OF AGRICULTURE |
2 |
1 |
3 |
2 |
0 |
8 |
ADVANTA U.S.A., INC. |
0 |
0 |
2 |
4 |
1 |
7 |
CARGILL, INC. |
0 |
1 |
3 |
2 |
1 |
7 |
COMPRESSOR CONTROLS CORP. |
3 |
1 |
1 |
2 |
0 |
7 |
EBSCO INDUSTRIES, INC. |
3 |
2 |
1 |
1 |
0 |
7 |
HENDERSON MANUFACTURING CO. |
0 |
1 |
1 |
1 |
4 |
7 |
KEMIN INDUSTRIES, INC. |
3 |
2 |
0 |
1 |
1 |
7 |
MICREL INCORPORATED |
0 |
0 |
1 |
2 |
4 |
7 |
SIRF TECHNOLOGY, INC. |
0 |
1 |
3 |
1 |
2 |
7 |
SUKUP MANUFACTURING COMPANY |
1 |
1 |
0 |
1 |
4 |
7 |
U.S. MANUFACTURING INC. |
2 |
5 |
0 |
0 |
0 |
7 |
WILIAN HOLDING COMPANY |
1 |
1 |
3 |
1 |
1 |
7 |
AGRIGENETICS, INC. |
0 |
2 |
3 |
0 |
1 |
6 |
AMERICAN SPORTS INTERNATIONAL, LTD. |
1 |
3 |
1 |
1 |
0 |
6 |
CUSTOM-PAK, INCORPORATED |
1 |
2 |
2 |
1 |
0 |
6 |
CYCLE COUNTRY ACCESSORIES CORP. |
3 |
1 |
0 |
0 |
2 |
6 |
LINK MFG., LTD. |
3 |
0 |
0 |
2 |
1 |
6 |
PUTCO, INC. |
1 |
2 |
0 |
0 |
3 |
6 |
CARLETON LIFE SUPPORT SYSTEMS, INC. |
0 |
0 |
1 |
2 |
2 |
5 |
CONEXANT SYSTEMS, INC. |
3 |
1 |
1 |
0 |
0 |
5 |
DEKALB GENETICS CORPORATION |
3 |
1 |
1 |
0 |
0 |
5 |
E. I. DU PONT DE NEMOURS AND COMPANY |
3 |
0 |
1 |
1 |
0 |
5 |
IPSCO ENTERPRISES, INC. |
1 |
2 |
1 |
1 |
0 |
5 |
JAM'N FITNESS CORP. |
2 |
3 |
0 |
0 |
0 |
5 |
LAND O'LAKES, INC. |
1 |
2 |
0 |
1 |
1 |
5 |
MCI WORLDCOM, INC. |
1 |
4 |
0 |
0 |
0 |
5 |
MCI, INC. |
0 |
0 |
0 |
3 |
2 |
5 |
MODERNFOLD, INC. |
0 |
1 |
2 |
2 |
0 |
5 |
WATERLOO INDUSTRIES |
0 |
2 |
0 |
2 |
1 |
5 |