Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7721583 | Pipe bending shoe | Clifford B. Anderson, David Styre | 2010-05-25 |
| 7455828 | Process and apparatus for converting hydrogen sulfide into hydrogen and sulfur | Richard Selinger | 2008-11-25 |
| 6877566 | Method and apparatus for causing pressure variations in a wellbore | Richard Selinger, Clifford J. Anderson, Michael F. Schoettler | 2005-04-12 |
| 6386421 | Actuation system for an internal backup ring assembly | Clifford J. Anderson, Mark R. Sawa | 2002-05-14 |
| 6119916 | Internal backup ring system | Clifford J. Anderson, Mark R. Sawa | 2000-09-19 |