Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5616644 | Dyestuff-containing aqueous dispersions | Bernhard Schlarb, Kurt Wendel, Karin H. Beck | 1997-04-01 |
| 5607762 | Ink-ribbons comprising IR-absorbing compounds | Bernhard Albert, Juergen Kipper, Friedrich Closs | 1997-03-04 |