Issued Patents 2005
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6930616 | Method and apparatus for LWD shear velocity measurement | Xiao Ming Tang, Tsili Wang, Douglas J. Patterson, James V. Leggett, III | 2005-08-16 |
| 6915875 | Acoustic isolator for downhole applications | Alexei Bolshakov | 2005-07-12 |
| 6909666 | Method and apparatus for generating acoustic signals for LWD shear velocity measurement | James V. Leggett, III, Douglas J. Patterson, Herbert W. Beimgraben, Julie C. Slaughter, Toby Hansen +1 more | 2005-06-21 |
| 6891481 | Resonant acoustic transmitter apparatus and method for signal transmission | Volker Krueger | 2005-05-10 |