Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5281572 | Bichromorphic methine and azamethine dyes and process for transferring them | Karl-Heinz Etzbach, Ruediger Sens | 1994-01-25 |
| 5225548 | Indophenol dyes and thermal transfer thereof | Karl-Heinz Etzbach, Ruediger Sens | 1993-07-06 |
| 5221658 | Transfer of indoaniline dyes | Ruediger Sens, Karl-Heinz Etzbach | 1993-06-22 |
| 5214140 | Bichromophoric methine and azamethine dyes and process for transferring them | Karl-Heinz Etzbach, Ruediger Sens | 1993-05-25 |
| 5212027 | Monomers and their use for the production of a laser-optical recording element which can be repeatedly erased and recorded on | Karl-Heinz Etzbach, Gerhard Wagenblast, Wolfgang Brox, Axel Paul | 1993-05-18 |
| 5187298 | Monomers and their use for the production of a laser-optical recording element which can be repeatedly erased and recorded on | Kark-Heinz Etzbach, Gerhard Wagenblast, Wolfgang Brox, Axel Paul | 1993-02-16 |
| 5187248 | Monomers and their use for the production of a laser-optical recording element which can be repeatedly erased and recorded on | Karl-Heinz Etzbach, Gerhard Wagenblast, Wolfgang Brox, Axel Paul | 1993-02-16 |
| 5158928 | Azo dyes for thermotransfer printing | Karl-Heinz Etzbach, Sabine Gruettner, Gunther Lamm, Helmut Reichelt, Ruediger Sens | 1992-10-27 |
| 5151506 | Phenoneazo dyes | Guenter Hansen, Gunther Lamm, Ruediger Sens | 1992-09-29 |
| 5139997 | Transfer of bichromophoric cyano-containing methine dyes | Karl-Heinz Etzbach, Ruediger Sens | 1992-08-18 |
| 5132438 | Bichromophoric methine and azamethine dyes and process for transferring them | Karl-Heinz Etzbach, Ruediger Sens | 1992-07-21 |
| 5101035 | Merocyanine-like thiazole dyes and thermal transfer thereof | Karl-Heinz Etzbach, Gunther Lamm, Ruediger Sens, Klaus Unterforsthuber, Rosemarie Rausch-Krebs | 1992-03-31 |
| 4983324 | Pyrrolo[1,2-b]azines | Heinz Durr | 1991-01-08 |
| 4940692 | Transfer of dyes | Ruediger Sens, Karl-Heinz Etzbach, Manfred Ruske | 1990-07-10 |