Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4693846 | Urethane-modified rosin esters | Robert M. Piccirilli, Roger M. Christenson, Joseph M. Makhlouf | 1987-09-15 |
| 4639492 | Phenolic-modified rosin esters | Joseph M. Makhlouf, Robert M. Piccirilli | 1987-01-27 |