Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7552631 | Internal riser inspection device and methods of using same | Larry K. Harthorn | 2009-06-30 |
| 7234347 | Internal riser inspection device and methods of using same | Larry K. Harthorn | 2007-06-26 |
| 7104125 | Internal riser inspection device and methods of using same | Larry K. Harthorn | 2006-09-12 |
| 7082822 | Internal riser inspection device and methods of using same | Larry K. Harthorn | 2006-08-01 |