Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5197239 | Containment system | John Rexroad, David S. Denny | 1993-03-30 |
| 5143171 | Roof lifeline safety system and anchor assembly therefor | John Rexroad, David S. Denny | 1992-09-01 |
| 4875549 | Debris barrier | David S. Denny, Edward C. R. Metzger, John Rexroad | 1989-10-24 |
| 4815562 | Debris barrier | David S. Denny, Edward R. Metzger, John Rexroad | 1989-03-28 |