Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4685944 | High efficiency particulate air filter | Thomas Allan | 1987-08-11 |
| 4584005 | High efficiency particulate air filter and method of fabricating same | Thomas Allan | 1986-04-22 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4685944 | High efficiency particulate air filter | Thomas Allan | 1987-08-11 |
| 4584005 | High efficiency particulate air filter and method of fabricating same | Thomas Allan | 1986-04-22 |