Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9566219 | Temporary stain repellent for preventing staining of teeth | Nicolas Alex Wawiluk | 2017-02-14 |
| 5237986 | Respirator harness assembly | Harold J. Seppala | 1993-08-24 |
| 4980927 | Adherent protective collars | Harold J. Seppala, Arthur L. Fry | 1991-01-01 |