Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8176761 | Keypad lockset | Birk Cliff Sorensen, Ping Hsien Tsai, Wai P. Wong, John E. Walsh | 2012-05-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8176761 | Keypad lockset | Birk Cliff Sorensen, Ping Hsien Tsai, Wai P. Wong, John E. Walsh | 2012-05-15 |