Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D356129 | Football | — | 1995-03-07 |
| 4612996 | Robotic agricultural system with tractor supported on tracks | Alan G. Zech | 1986-09-23 |
| 4584791 | Soiless agricultural system and components therefore | — | 1986-04-29 |
| 4527544 | High insulating solar block structures | Alan G. Zech | 1985-07-09 |
| D279300 | Paperweight | — | 1985-06-18 |
| 4265212 | Hand catapult | — | 1981-05-05 |