Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12390022 | Devices, systems and methods for hanging and securing items for display | William H. Bullwinkel, David R. Wachsman, Alvin Ma | 2025-08-19 |
| 11992135 | Devices, systems and methods for hanging and securing items for display | William H. Bullwinkel, David R. Wachsman, Alvin Ma | 2024-05-28 |
| 11976497 | Drawer lock assemblies | William H. Bullwinkel, David R. Wachsman, Alvin Ma | 2024-05-07 |
| 11879269 | Ratchet lock assemblies | William H. Bullwinkel, David R. Wachsman, Alvin Ma | 2024-01-23 |
| D988835 | Ratchet locking device | William H. Bullwinkel, David R. Wachsman | 2023-06-13 |
| D981207 | Drawer lock assembly | William H. Bullwinkel, David R. Wachsman | 2023-03-21 |
| 4307954 | Bayonet mount | — | 1981-12-29 |