Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8531057 | Faraday electrical energy sink for a power bus | David L. Hoelscher | 2013-09-10 |
| 5767671 | Method of testing the lifeline of coiled tubing | Terry H. McCoy | 1998-06-16 |
| 5337234 | Self-contained downhole gauge system | Terry O. Anderson, J. Mark Richardson, Jack C. Penn, Michael Lynch, Billy W. White +5 more | 1994-08-09 |
| 5299640 | Knife gate valve stage cementer | Steven G. Streich, John T. Brandell | 1994-04-05 |
| 5252918 | Apparatus and method for electromagnetically detecting the passing of a plug released into a well by a bridge circuit | James L. Davis | 1993-10-12 |
| 5202194 | Apparatus and method for providing electrical power in a well | — | 1993-04-13 |
| 5153832 | Self-containing downhole gauge system | Terry O. Anderson, J. Mark Richardson, Jack C. Penn, Michael Lynch, Billy W. White +5 more | 1992-10-06 |
| 4866607 | Self-contained downhole gauge system | Terry O. Anderson, J. Mark Richardson, Jack C. Penn, Michael Lynch, Billy W. White +5 more | 1989-09-12 |