Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4461448 | Well blowout preventer, and packing element | Wai J. Huey, Eugene Matsuda | 1984-07-24 |
| 4452421 | Well blowout preventer, and packing element | Wai J. Huey, Eugene Matsuda | 1984-06-05 |
| 4447037 | Well blowout preventer, and packing element | Wai J. Huey, Eugene Matsuda | 1984-05-08 |