Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4646558 | Method for leak testing air filters | Roger T. Goulet | 1987-03-03 |
| D286958 | Base cabinet | — | 1986-12-02 |
| 4548068 | Downflow air filter construction and methods for air flow adjustment and leak testing thereof | Roger T. Goulet | 1985-10-22 |