Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6707454 | Systems and methods for visualizing multi-dimensional data in spreadsheets and other data structures | Timothy A. Barg, Susan K. Burkwald, Stephen Gregory Eick, Brenda A. Garity, Dianne K. Hackborn +2 more | 2004-03-16 |
| 4799851 | Level lift hydraulic valve | — | 1989-01-24 |
| 4407109 | Hydraulic circuit for lifting the reel of an agricultural harvester | Eugene J. Krukow, Norman G. Stroup | 1983-10-04 |
| 4402549 | Receptacle lift apparatus | — | 1983-09-06 |
| 4381036 | Planter height and marker control system | Randolph G. Fardal, Edward L. Robinson, Jr. | 1983-04-26 |
| 4373669 | Hydraulic drive for an agricultural sprayer | — | 1983-02-15 |
| 4359867 | Seat accumulator clutch booster assist | — | 1982-11-23 |
| 4354688 | Hydraulic circuit for a tractor drawn implement having remote variable height selector | — | 1982-10-19 |
| 4346763 | Agricultural implement sectional frame with depth limit | Evert J. Heersink | 1982-08-31 |
| 4339139 | Hydraulic circuit for synchronous lift of flexible frame implements | — | 1982-07-13 |
| 4337959 | Self-leveling and height control hydraulic system | Leonard A. Bettin | 1982-07-06 |
| 4335561 | Header height position control for a cotton harvester | Jesse H. Orsborn | 1982-06-22 |
| 4335894 | Implement level lift system with rephasing valves | — | 1982-06-22 |
| 4327540 | Header height control for a cotton harvester | — | 1982-05-04 |
| 4307560 | Header height position control for a cotton harvester | — | 1981-12-29 |