Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7513167 | Single-fracture method and apparatus for automatic determination of underground stress state and material properties | — | 2009-04-07 |
| 5675088 | Method and apparatus for automatic monitoring of tectonic stresses and quantitative forecast of shallow earthquakes | — | 1997-10-07 |
| 5576485 | Single fracture method and apparatus for simultaneous measurement of in-situ earthen stress state and material properties | — | 1996-11-19 |
| 4836612 | Stress control mining method and apparatus | — | 1989-06-06 |
| 4733567 | Method and apparatus for measuring in situ earthen stresses and properties using a borehole probe | — | 1988-03-29 |
| 4305299 | Micro-creepmeter | — | 1981-12-15 |