Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5179973 | Valve with pressure assisted closing system | Rennie L. Dickson, Kenneth L. Schwendemann, Timothy J. Noack | 1993-01-19 |
| 5058683 | Wet connector | Mark A. Schnatzmeyer, Henry P. Arendt | 1991-10-22 |
| 5050839 | Valve | Rennie L. Dickson, Kenneth L. Schwendemann, Timothy J. Noack | 1991-09-24 |
| 4997384 | Wet connector | Mark A. Schnatzmeyer, Henry P. Arendt | 1991-03-05 |
| 4921438 | Wet connector | Mark A. Schnatzmeyer, Henry P. Arendt | 1990-05-01 |
| 4702320 | Method and system for attaching and removing equipment from a wellhead | John C. Gano, Kenneth L. Schwendemann, Timothy J. Noack | 1987-10-27 |