Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5319052 | Printing inks containing oxidatively crosslinkable urethane resins | Bernhard Prantl, Dirk Lawrenz | 1994-06-07 |
| 5073623 | Condensation products based on rosin | Bernhard Prantl, Erwin Stark | 1991-12-17 |