Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10994159 | Harness for breathing apparatus | David Cheesman, Gordon Wrigley | 2021-05-04 |
| 10569108 | Harness for breathing apparatus | David Cheesman, Gordon Wrigley | 2020-02-25 |
| 8608040 | Harness for breathing apparatus | David Cheesman | 2013-12-17 |
| D653325 | Structural support member for a harness for breathing apparatus | David Cheesman | 2012-01-31 |
| D591414 | Gas purifier | David Thomas McMillan | 2009-04-28 |