Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4653119 | Clothing protector | — | 1987-03-31 |
| 4631059 | Sheath remover | Sidney Wolvek, Kenneth F. Kaltenbach | 1986-12-23 |
| 4572815 | Peanut hull thermal insulation | — | 1986-02-25 |
| 4188509 | Tone signalling arrangement for a telecommunications exchange | Peter Munchow | 1980-02-12 |