Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5998211 | Use of compounds which absorb and/or fluoresce in the IR region as markers for liquids | Bernhard Albert, Christos Vamvakaris, Karin H. Beck, Gerhard Wagenblast | 1999-12-07 |
| 5804447 | Use of compounds which absorb and/or fluoresce in the IR region as markers for liquids | Bernhard Albert, Christos Vamvakaris, Karin H. Beck, Gerhard Wagenblast | 1998-09-08 |
| 5656752 | Preparation of naphthalocyanines | Bernhard Albert | 1997-08-12 |
| 5607762 | Ink-ribbons comprising IR-absorbing compounds | Bernhard Albert, Friedrich Closs, Helmut Bellaire | 1997-03-04 |
| 5512095 | Naphthalocyanines | Benno Sens, Andres Carlos Garcia Espino, Bernhard Albert | 1996-04-30 |
| 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 |