Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5077484 | Light controlled extension socket | Shiang Shiun Tsai | 1991-12-31 |
| 5035635 | Revolving safety socket | Shiang Shiun Tsai, Meei-lin Tsai | 1991-07-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5077484 | Light controlled extension socket | Shiang Shiun Tsai | 1991-12-31 |
| 5035635 | Revolving safety socket | Shiang Shiun Tsai, Meei-lin Tsai | 1991-07-30 |