Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11774094 | Plastic-powered power generator | — | 2023-10-03 |
| 11635205 | Plastic-powered power generator | — | 2023-04-25 |
| 11306916 | Plastic-powered power generator | — | 2022-04-19 |
| 6158464 | Low pressure back-up valve for pool cleaner | Sanford F. Campbell | 2000-12-12 |
| 4334668 | Portable foldable hoist | — | 1982-06-15 |