Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10202661 | Recovering chrome from a tannery process | Dale F. Graham, Gary Rennerfeldt, Pansouvanh Douangdara | 2019-02-12 |
| 9683270 | Method of recovering chrome from a tannery process | Dale F. Graham, Gary Rennerfeldt, Pansouvanh Douangdara | 2017-06-20 |
| 8176652 | Method and apparatus for removing water from hide of cattle | Thomas R. Donahue | 2012-05-15 |