Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6265481 | Rapidly absorbed printing inks and their use | Werner Fries, Arnold Dobbelstein, Horst Sobitzkat | 2001-07-24 |
| 5902391 | Preparing inks for offset printing | Hans Becker, Thomas Zerbe | 1999-05-11 |
| 5508320 | Printing inks based on mineral oil and their use for sheet offset printing | Werner Fries, Matthias Kappel | 1996-04-16 |
| 4627876 | Printing ink | Werner Fries | 1986-12-09 |