Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6663676 | Preparation of an aqueous composition for treating leather | Anton El A'mma, Monika Ulrike Fritsche | 2003-12-16 |
| 5820633 | Method of treating leather with improved retaining agents | Patricia Marie Lesko, Alvin M. Maurice | 1998-10-13 |
| 5348807 | Polymeric retan fatliquor for low fogging upholstery leather | Patricia Marie Lesko, Thomas Stewart | 1994-09-20 |
| 4334876 | Process for producing leather | William C. Beier | 1982-06-15 |
| 4314802 | Process for producing leather | William C. Beier | 1982-02-09 |