Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6827160 | Downhole mud motor | Paris E. Blair, Joseph L. Ficken | 2004-12-07 |
| 6749030 | Integrated transmitter surveying while boring entrenching powering device for the continuation of a guided bore hole | Paris E. Blair, Joseph L. Ficken | 2004-06-15 |