Issued Patents All Time
Showing 51–75 of 101 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6369217 | Scleroglucans and cosmetic compositions containing the new compounds | Thomas Maier, Udo Rau, Bernhard Schilling | 2002-04-09 |
| 6354374 | Method of performing downhole functions | A. Glen Edwards | 2002-03-12 |
| 6311774 | Method and apparatus for securing a well casing to a wellbore | Mark W. Brockman | 2001-11-06 |
| 6304997 | Method and circuit arrangement for multiplying frequency | — | 2001-10-16 |
| 6213203 | Lock mechanism for use with a downhole device | A. Glen Edwards | 2001-04-10 |
| 6182750 | Device for performing downhole functions | A. Glen Edwards | 2001-02-06 |
| 6162449 | Scleroglucans and cosmetic composition containing the new compounds | Thomas Maier, Udo Rau, Bernhard Schilling | 2000-12-19 |
| 6151961 | Downhole depth correlation | Steven W. Henderson, James W. Babineau | 2000-11-28 |
| 6143904 | Color former mixture | Rudolf Zink | 2000-11-07 |
| 6123152 | Retrieving well tools under pressure | A. Glen Edwards | 2000-09-26 |
| 6102126 | Pressure-actuated circulation valve | A. Glen Edwards, James W. Babineau | 2000-08-15 |
| 6098716 | Releasable connector assembly for a perforating gun and method | Joe C. Hromas | 2000-08-08 |
| 6085843 | Mechanical shut-off valve | A. Glen Edwards, Charles van Petegm, James W. Babineau | 2000-07-11 |
| 6059042 | Completions insertion and retrieval under pressure (CIRP) apparatus including the snaplock connector | A. Glen Edwards, Edward G. Smith, Jr., Laurent E. Muller | 2000-05-09 |
| 6049985 | Detonating cord cutter | Manuel T. Gonzalez, James C. Oliver, Andrew T. Werner | 2000-04-18 |
| 6003599 | Azimuth-oriented perforating system and method | Joe C. Hromas | 1999-12-21 |
| 5979561 | Downhole activation circuit valving | A. Glen Edwards | 1999-11-09 |
| 5971072 | Inductive coupler activated completion system | Joe C. Hromas, Nolan C. Lerche | 1999-10-26 |
| 5964294 | Apparatus and method for orienting a downhole tool in a horizontal or deviated well | A. Glen Edwards | 1999-10-12 |
| 5911277 | System for activating a perforating device in a well | Joe C. Hromas | 1999-06-15 |
| 5890539 | Tubing-conveyer multiple firing head system | A. Glen Edwards, Joe C. Hromas, Laurent E. Muller, Nathan E. Addicks | 1999-04-06 |
| 5887654 | Method for performing downhole functions | A. Glen Edwards | 1999-03-30 |
| 5865254 | Downhole tubing conveyed valve | Laurent E. Muller | 1999-02-02 |
| 5848646 | Well completion apparatus for use under pressure and method of using same | A. Glen Edwards, Edward G. Smith, Jr., Laurent E. Muller | 1998-12-15 |
| 5781630 | Method and device for accurately dating an electronic document | Friedrich Toensing | 1998-07-14 |