Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5114704 | Raw hide having a coating containing an inorganic pyrophosphate | Henry C. Spanier | 1992-05-19 |
| 5011679 | Raw hide having a coating containing an inorganic pyrophosphate | Henry C. Spanier | 1991-04-30 |