Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11821335 | Blade intake | Gary Sidebotham, Chenhui Liu | 2023-11-21 |
| D374524 | Pneumatic vacuum nozzle | — | 1996-10-08 |
| 4636316 | Disposable column cartridge | Nelson H. Cooke, Kristine Olsen | 1987-01-13 |
| D272041 | Lock unit | by Janet E. Harris, personal representative | 1984-01-03 |
| D258249 | Flexible shoe horn | — | 1981-02-17 |
| D254820 | Refillable toothpaste brush | — | 1980-04-29 |