Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6909666 | Method and apparatus for generating acoustic signals for LWD shear velocity measurement | Vladimir Dubinsky, James V. Leggett, III, Douglas J. Patterson, Herbert W. Beimgraben, Julie C. Slaughter +1 more | 2005-06-21 |
| 6135234 | Dual mode multiple-element resonant cavity piezoceramic borehole energy source | Jerry M. Harris, Bruce P. Marion | 2000-10-24 |