Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5423911 | Coating pigment for cellulose - based printing media | Helmut Coutelle, Friedrich Ruf, Hartmann Schott | 1995-06-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5423911 | Coating pigment for cellulose - based printing media | Helmut Coutelle, Friedrich Ruf, Hartmann Schott | 1995-06-13 |