Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5282894 | Use of a liquid containing IR dyes as printing ink | Bernhard Albert, Friedrich Closs, Walter Kurtz, Karin H. Beck, Rudolf Griebel | 1994-02-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5282894 | Use of a liquid containing IR dyes as printing ink | Bernhard Albert, Friedrich Closs, Walter Kurtz, Karin H. Beck, Rudolf Griebel | 1994-02-01 |