Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8151882 | Technique and apparatus to deploy a perforating gun and sand screen in a well | Larry Grigar | 2012-04-10 |
| 8118098 | Flow control system and method for use in a wellbore | Larry Grigar | 2012-02-21 |
| 7493958 | Technique and apparatus for multiple zone perforating | Larry Grigar | 2009-02-24 |
| 7487833 | Safety apparatus for perforating system | Larry Grigar | 2009-02-10 |
| 7353871 | Downhole automatic tool release and method of use | Larry Grigar | 2008-04-08 |
| 7278484 | Techniques and systems associated with perforation and the installation of downhole tools | Mark Vella, Bennie Gill, Larry Grigar, Steven W. Henderson | 2007-10-09 |
| 7152676 | Techniques and systems associated with perforation and the installation of downhole tools | Mark Vella, Bennie Gill, Larry Grigar, Steven W. Henderson | 2006-12-26 |
| 6966378 | Method and apparatus for perforating a well | Mark Vella | 2005-11-22 |
| 6098716 | Releasable connector assembly for a perforating gun and method | Klaus Huber | 2000-08-08 |
| 6003599 | Azimuth-oriented perforating system and method | Klaus Huber | 1999-12-21 |
| 5971072 | Inductive coupler activated completion system | Klaus Huber, Nolan C. Lerche | 1999-10-26 |
| 5911277 | System for activating a perforating device in a well | Klaus Huber | 1999-06-15 |
| 5890539 | Tubing-conveyer multiple firing head system | Klaus Huber, A. Glen Edwards, Laurent E. Muller, Nathan E. Addicks | 1999-04-06 |
| 5509481 | Method of perforating including an automatic release apparatus suspending by wireline or coiled tubing in a wellbore for perforating a long length interval of the wellbore in a single run using a gun string longer than a wellhead lubricator | Klaus Huber | 1996-04-23 |
| 5429192 | Method and apparatus for anchoring a perforating gun to a casing in a wellbore including a primary and a secondary anchor release mechanism | Klaus Huber, A. Glen Edwards | 1995-07-04 |
| 5366013 | Shock absorber for use in a wellbore including a frangible breakup element preventing shock absorption before shattering allowing shock absorption after shattering | A. Glen Edwards, Klaus Huber, Edward G. Smith, Jr. | 1994-11-22 |
| 5337827 | Pressure-controlled well tester adapted to be selectively retained in a predetermined operating position | Dinesh R. Patel | 1994-08-16 |
| 5318126 | Explosively opened production valve including a frangible breakup element operated by tubing pressure or rathole pressure or both | A. Glen Edwards, Klaus Huber | 1994-06-07 |
| 5293940 | Automatic tubing release | Antoni Miszewski, Klaus Huber | 1994-03-15 |
| 5203414 | Method of anchoring a device in a wellbore including opening an orifice between two chambers in response to an electrical signal and moving a piston in response to hydrostatic pressure when the orifice is opened | A. Glen Edwards, Klaus Huber | 1993-04-20 |
| 5191933 | Wellbore apparatus including a rathole pressure balanced-differential pressure firing system | A. Glen Edwards, Klaus Huber, Antoni Miszewski, William McGinley Hill | 1993-03-09 |
| 5158142 | Apparatus for releasing a pipe string from an object stuck downhole by continuously applying tension to said apparatus | Antoni Miszewski, Klaus Huber | 1992-10-27 |
| 5146983 | Hydrostatic setting tool including a selectively operable apparatus initially blocking an orifice disposed between two chambers and opening in response to a signal | A. Glen Edwards, Klaus Huber | 1992-09-15 |
| 5095993 | Anchor apparatus for a tubing and wireline conveyed method and apparatus | Klaus Huber, Arnold G. Edwards | 1992-03-17 |
| 5050682 | Coupling apparatus for a tubing and wireline conveyed method and apparatus | Klaus Huber, Arnold G. Edwards | 1991-09-24 |