Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6451062 | Hide-curing additive | Dana J. Johnson, Frederick W. Holzhauer | 2002-09-17 |
| 6348226 | Method for bleaching tripe using liquid bleaching agents | Frederick W. Holzhauer | 2002-02-19 |