Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885015 | HEPA air filter for high temperature environments and method of fabrication | Joseph Cutri, Joseph DeYulio | 1989-12-05 |
| 4646558 | Method for leak testing air filters | Peter J. Gualtieri | 1987-03-03 |
| 4548068 | Downflow air filter construction and methods for air flow adjustment and leak testing thereof | Peter J. Gualtieri | 1985-10-22 |