Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11883695 | Respirator mask with air-saver switch | Darrill L. Plummer, Judge W. Morgan, III | 2024-01-30 |
| 11077323 | Respirator mask with air-saver switch | Darrill L. Plummer, Judge W. Morgan, III | 2021-08-03 |
| 6108988 | Spiral climb in surrounding enclosure | Keith C. Nagelski, Grant M. Strawcutter | 2000-08-29 |