Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6705149 | Universal backup mandrel with retractable sleeve and shock absorbing means | Cristinel Cobzaru | 2004-03-16 |
| 6019559 | Fastener having spiral shaped collar portion | Albert K. Yamamoto | 2000-02-01 |
| 5699702 | Wrenching tool with free-floating, self-relieving anti-rotation key | — | 1997-12-23 |
| 5669746 | Fastener having spiral shaped collar portion | Albert K. Yamamoto | 1997-09-23 |
| 5368181 | Captured drain plug or vent | — | 1994-11-29 |