Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6680994 | Monitoring the contents of a container by ultrasonic means | Gordon R. Jones, Keith Woolley, Joseph Spencer, Perminder Tony Singh, Robert McAlpine Dickson +1 more | 2004-01-20 |
| 5248153 | Lost object game apparatus and method | — | 1993-09-28 |
| D332334 | Waste receptacle with foot pedal | — | 1993-01-05 |
| 5163579 | Trash receptacle with retractable foot pedal | — | 1992-11-17 |