Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12345375 | Support frame for positive pressure blower | William T. Allen | 2025-07-01 |
| 12146615 | Support frame for positive pressure blower | William T. Allen | 2024-11-19 |
| 11624471 | Support frame for positive pressure blower | William T. Allen | 2023-04-11 |
| 11333291 | Support frame for positive pressure blower | William T. Allen | 2022-05-17 |
| 10837592 | Support frame for positive pressure blower | William T. Allen | 2020-11-17 |
| D829879 | Support frame for a positive pressure blower | William T. Allen | 2018-10-02 |
| 6336594 | Large scale positive pressure ventilation machine | Jurgen Bader | 2002-01-08 |