Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8616176 | Rotary internal combustion engine | Sam J. Jacobsen | 2013-12-31 |
| 6276517 | Ice conveyor | Timothy George Peterson, Richard John Donahue | 2001-08-21 |
| 5469625 | Compound action hand pruner | Robert T. Schofield | 1995-11-28 |
| 5377412 | Softouch scissors | Robert T. Schofield, Douglas J. Birkholz | 1995-01-03 |
| 5297343 | Trimming scissors and sheath assembly | Charles S. Ramsey | 1994-03-29 |
| 5179783 | All purpose scissors | — | 1993-01-19 |
| 5101564 | Hand-held cutter having a rotatable circular blade and safety guard | — | 1992-04-07 |
| 5084975 | Extendable pruner | — | 1992-02-04 |
| 4378543 | Latch relay with manual reset and test | Donald R. Ritzenthaler | 1983-03-29 |