| 10822943 |
Modulating downhole reflector |
Oladeji B. Akanbi |
2020-11-03 |
| 9019798 |
Acoustic reception |
Robert Brice Patterson, Dustin Holden, John P. Rodgers |
2015-04-28 |
| 7591318 |
Method for removing a sealing plug from a well |
— |
2009-09-22 |
| 7328750 |
Sealing plug and method for removing same from a well |
Loren Swor, Donald R. Smith, David N. Armstrong, Brian K. Wilkinson, Phillip M. Starr |
2008-02-12 |
| 7073582 |
Method and apparatus for positioning a downhole tool |
Michael L. Connell |
2006-07-11 |
| 5967231 |
Plug release indication method |
David F. Laurel, Charles Butterfield |
1999-10-19 |
| 5430882 |
Apparatus and method for protecting data stored in memory |
Kevin D. Fink, Roger M. Lewis |
1995-07-04 |
| 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 |
| 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 |
| 4932471 |
Downhole tool, including shock absorber |
James C. Tucker |
1990-06-12 |
| 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 |
| 4709234 |
Power-conserving self-contained downhole gauge system |
Gilbert H. Forehand, Michael Lynch, Richard L. Duncan, Jack C. Penn |
1987-11-24 |
| 4669082 |
Method of testing and addressing a magnetic core memory |
Richard L. Duncan, Bruce A. Kaufman |
1987-05-26 |
| 4665398 |
Method of sampling and recording information pertaining to a physical condition detected in a well bore |
Michael Lynch, Gilbert H. Forehand, Richard L. Duncan, Jack C. Penn |
1987-05-12 |