Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5021596 | Zirconium chelates, their preparation, and their use in printing inks | Dieter Barfurth, Heinz Nestler | 1991-06-04 |
| 4931094 | Titanium(IV)-chelates and their use in printing inks | Dieter Barfurth, Heinz Nestler | 1990-06-05 |
| 4423112 | Impregnating agent for materials containing cellulose | Bruno Luthringshauser | 1983-12-27 |