Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4962489 | Acoustic borehole logging | Stephen J. Manzi | 1990-10-09 |
| 4953137 | Method for determining earth stresses in formations surrounding a cased well | — | 1990-08-28 |
| 4907204 | Method for identifying formation fractures surrounding a well casing | — | 1990-03-06 |
| 4890687 | Borehole acoustic transmitter | Gary King | 1990-01-02 |
| 4742495 | Acoustic energy transmitter for borehole logging | Vasel R. Slover, Jr. | 1988-05-03 |
| 4718046 | Method for driving a bender-type transmitter of a borehole logging tool to sequentially produce acoustic compressional and tube waves | — | 1988-01-05 |
| 4715019 | Borehole logging method for determining the damping of acoustic tube waves in subsurface formations along a borehole wall | Gary L. Zumwalt | 1987-12-22 |
| 4577690 | Method of using seismic data to monitor firefloods | — | 1986-03-25 |
| 4417621 | Method for recovery of oil by means of a gas drive combined with low amplitude seismic excitation | Lucien Masse', Gary L. Zumwalt | 1983-11-29 |
| 4415035 | Method for fracturing a plurality of subterranean formations | Malcolm K. Strubhar, John L. Fitch | 1983-11-15 |
| 4412452 | Harmonic oscillator for measuring dynamic elastic constants of rock materials | Maurice A. Biot, Lucien Masse' | 1983-11-01 |
| 4409837 | Method for measuring the resonance of rock material | Lucien Masse | 1983-10-18 |
| 4385520 | Strain and phase detection for rock materials under oscillatory loading | Lucien Masse, James H. Sexton | 1983-05-31 |
| 4379407 | System for conducting resonance measurements of rock materials under confining pressure | Lucien Masse, James H. Sexton | 1983-04-12 |
| 4378698 | Amplitude and phase detector in a harmonic oscillator system | Lucien Masse, James H. Sexton | 1983-04-05 |
| 4378845 | Sand control method employing special hydraulic fracturing technique | Lynn D. Mullins, Gary L. Zumwalt | 1983-04-05 |
| 4354381 | Sonic attenuating method for distinguishing between oil, water and gas | Lucien Masse, James H. Sexton | 1982-10-19 |