Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5790185 | Video inspection or logging tool | Francois M. Auzerais, Robert J. Schroeder, Jeffrey A. Tarvin | 1998-08-04 |
| 5551344 | Method and apparatus for overbalanced perforating and fracturing in a borehole | Luc Petijean, Luis C. Ayestaran | 1996-09-03 |
| 5539225 | Accelerator-based methods and apparatus for measurement-while-drilling | William A. Loomis, Kenneth E. Stephenson, Jerome A. Truax, Wolfgang Ziegler, S. Zema Chowdhuri +6 more | 1996-07-23 |
| 4779353 | Tool for measuring inclination and rotation | Jose C. B. Lopes, Gary S. Stumolo, Warren F. Ziehl | 1988-10-25 |