Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5017318 | Method of making a water filter | Herbert J. Vanderbilt | 1991-05-21 |
| 4859386 | Method of making a water filter | Herbert J. Vanderbilt | 1989-08-22 |
| 4753728 | Water filter | Herbert J. Vanderbilt | 1988-06-28 |