Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7869955 | Subsurface prediction method and system | Libo ZHANG | 2011-01-11 |
| 7577529 | Method for determining attributes associated with net-sand thickness | — | 2009-08-18 |
| 4875197 | Method and apparatus for determining propagation velocities of elastic waves in a borehole | — | 1989-10-17 |
| 4777628 | Seismic system and method | — | 1988-10-11 |
| 4468761 | Noise suppression method | — | 1984-08-28 |
| 4390973 | Method for determining the extent of subsurface reaction involving acoustic signals | — | 1983-06-28 |
| 4320471 | Seismic surveying method | — | 1982-03-16 |
| 4240070 | Variable digital to analog converter | Klaus Helbig | 1980-12-16 |