Issued Patents All Time
Showing 51–65 of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6401529 | Apparatus and method for determining constituent composition of a produced fluid | Charles R. Williams, Neal G. Skinner | 2002-06-11 |
| 6394181 | Self-regulating lift fluid injection tool and method for use of same | Mark A. Schnatzmeyer, Russell Irving Bayh, III | 2002-05-28 |
| 6359569 | Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation | Harold Kent Beck, Arthur Isadore Burke, Ian Phillips, Elbert Juan Smith, Tance Jackson | 2002-03-19 |
| 6343649 | Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation | Harold Kent Beck, Arthur Isadore Burke, Ian Colin Phillips, Elbert Juan Smith, Alan Tancel Jackson | 2002-02-05 |
| 6298919 | Downhole hydraulic path selection | Paul L. Browne | 2001-10-09 |
| 6286596 | Self-regulating lift fluid injection tool and method for use of same | Mark A. Schnatzmeyer, Russell Irving Bayh, III | 2001-09-11 |
| 6199628 | Downhole force generator and method | Harold Kent Beck, Alan Tancel Jackson, John J. Goiffon | 2001-03-13 |
| 6172614 | Method and apparatus for remote actuation of a downhole device using a resonant chamber | Wallace R. Gardner, John W. Minear | 2001-01-09 |
| 6150601 | Method and apparatus for generating electric power downhole | Mark A. Schnatzmeyer | 2000-11-21 |
| 5871046 | Orienting, retrievable whipstock anchor | — | 1999-02-16 |
| 5479991 | Reeled tubing deployed packer with control line bypass | Dennis D. Rood | 1996-01-02 |
| 5390742 | Internally sealable perforable nipple for downhole well applications | Christopher A. Dines, Perry C. Shy, William R. Welch | 1995-02-21 |
| 5211241 | Variable flow sliding sleeve valve and positioning shifting tool therefor | Howard R. Mashaw, Jr., Christopher A. Dines, Robert C. Hammett | 1993-05-18 |
| RE33614 | Apparatus and method for enhanced oil recovery | Carl M. Schwab, Jr., James B. Renfroe, Jr. | 1991-06-18 |
| 4646828 | Apparatus for enhanced oil recovery | Carl M. Schwab, Jr., James B. Renfroe, Jr. | 1987-03-03 |