Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6078867 | Method and apparatus for generation of 3D graphical borehole analysis | Christoph Ramshorn, Bjoern Zehner | 2000-06-20 |
| 5517854 | Methods and apparatus for borehole measurement of formation stress | Yogesh S. Dave | 1996-05-21 |
| 5353637 | Methods and apparatus for borehole measurement of formation stress | Yogesh S. Dave | 1994-10-11 |
| 5335542 | Integrated permeability measurement and resistivity imaging tool | T. Ramakrishnan, David Rossi, Yogesh S. Dave, William F. Murphy, Peter A. Goode +4 more | 1994-08-09 |
| 4888740 | Differential energy acoustic measurements of formation characteristic | Alain Brie, Kai Hsu | 1989-12-19 |
| 4870627 | Method and apparatus for detecting and evaluating borehole wall fractures | Kai Hsu, Alain Brie | 1989-09-26 |