Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6414905 | Method and apparatus for communicating coded messages in a wellbore | Brett W. Bouldin, David Rothers, Douglas J. Lehr, Michael W. Holcombe | 2002-07-02 |
| 5579283 | Method and apparatus for communicating coded messages in a wellbore | Brett W. Bouldin, David Rothers, Douglas J. Lehr, Michael W. Holcombe | 1996-11-26 |
| 5558153 | Method & apparatus for actuating a downhole tool | Michael W. Holcombe, David Rothers, William David Henderson, James C. Doane | 1996-09-24 |