Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6530433 | Wellhead with ESP cable pack-off for low pressure applications | Charles Milton, Timothy Lewis Clifton, Robert Daniel Winegar | 2003-03-11 |
| 5865245 | Stuffing box gland | Lindell R. Trout, Thomas S. Evans | 1999-02-02 |
| 5605194 | Independent screwed wellhead with high pressure capability and method | — | 1997-02-25 |
| 5492373 | Wellhead flange for interconnecting a threaded wellhead and a flanged blowout preventer | — | 1996-02-20 |
| 4296458 | Electrolyte capacitors with improved anode-to-lead connection | William Tew, Jack Woolley | 1981-10-20 |