Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5305958 | Dual-directionally hydraulically-controllable center-pivot irrigation apparatus | — | 1994-04-26 |
| 4627572 | Modular central-pillar assemblies for center-pivot irrigation apparatus | Theodore D. Olson, Jr. | 1986-12-09 |
| 4382550 | Central-pillar assemblies for center-pivot irrigation apparatuses | — | 1983-05-10 |
| 4341405 | Pronounced flexure coupling devices for elongate irrigation pipes | — | 1982-07-27 |