Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7320505 | Attack tool | David R. Hall, Ronald B. Crockett | 2008-01-22 |
| 7231766 | High pressure intensifying piston valve | David R. Hall, Timothy C. Duke, Ronald B. Crockett | 2007-06-19 |