Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7787525 | Method and apparatus for transmission of well-bore data on multiple carrier frequencies | Lloyd Douglas Clark, Suzanne D. Richardson, Ramon Hernandez-Marti, Terry L. Mayhugh, Bart Bombay +2 more | 2010-08-31 |
| 5432446 | Borehole measurement of NMR characteristics of earth formation | Jason P. MacInnis, Don T. Macune, Christopher E. Morriss, Richard W. Oldigs, John Edward Smaardyk | 1995-07-11 |
| 5058078 | Method and apparatus for determining compressional first arrival times from waveform threshold crossing provided by apparatus disposed in a sonic well tool | Kevin Eyl, Andrew Kurkjian, David Lineman, Edward Alan Pierce | 1991-10-15 |
| 4985873 | Method and apparatus for determining compressional first arrival times from waveform threshold crossings provided by apparatus disposed in a sonic well tool | Kevin Eyl, Andrew Kurkjian, David Lineman, Edward Alan Pierce | 1991-01-15 |