Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9834890 | Blends of polymers as wet strengthening agents for paper | Cornel Hagiopol, David F. Townsend, Clay E. Ringold, James W. Johnston, Robert McDonald +1 more | 2017-12-05 |
| 9689114 | Strengthening resins for paper products | Clay E. Ringold, Cornel Hagiopol, James W. Johnston | 2017-06-27 |