Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5857478 | Demand responsive flow control valve | James L. Davison | 1999-01-12 |
| D285671 | Electrically powered three wheeled vehicle for the handicapped | Allan THIEME, Henry L. Dominguez, Indulis Piziks | 1986-09-16 |
| D285187 | Powered wheelchair | Indulis Piziks, Melvin E. Shepard, Wilbur W. Wentworth, II | 1986-08-19 |
| 4301915 | Snap-on attachment for roller chain conveyors | Anthony J. Michalik, Peter L. Thiel, James A. Palmer | 1981-11-24 |