Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8997313 | Concentric spiral spring counterbalance mechanism | Gary W. Krajenke, Houng Yue Chang | 2015-04-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8997313 | Concentric spiral spring counterbalance mechanism | Gary W. Krajenke, Houng Yue Chang | 2015-04-07 |