Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6469637 | Adjustable shear valve mud pulser and controls therefor | Terry A. Seyler | 2002-10-22 |
| 6459262 | Toroidal receiver for NMR MWD | Bryan Gonsoulin, Larry W. Thompson | 2002-10-01 |