Issued Patents All Time
Showing 51–75 of 151 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5580980 | N-aminopyridone dyes | Ernst Schefczik, Ruediger Sens, Matthias Wiesenfeldt | 1996-12-03 |
| 5549853 | Linked azo dyes | Stefan Beckmann, Karl Siemensmeyer, Ruediger Sens | 1996-08-27 |
| 5545235 | Thermal transfer of pyridone dyes | Rudiger Sens | 1996-08-13 |
| 5538824 | Reversible or irreversible production of an image | Volker Bach, Harald Fuchs, Karl Siemensmeyer, Gerhard Wagenblast | 1996-07-23 |
| 5518824 | Electroluminescent arrangement | Dirk Funhoff, Karl Siemensmeyer, Lukas Haussling, Dietrich Haarer, Juergen Simmerer | 1996-05-21 |
| 5489312 | Cyan mixtures for dye transfer | Thomas Werner, Ruediger Sens | 1996-02-06 |
| 5483005 | Preparation of polymers with NLO-active side groups and the use thereof | Stefan Beckmann | 1996-01-09 |
| 5461131 | Azo dye polymers | Matthias Wiesenfeldt, Sabine Gruettner-Merten, Ruediger Sens, Heike Kilburg | 1995-10-24 |
| 5455325 | Optically active phenoxypropionic esters | Volker Bach, Wolfgang Brox, Axel Paul, Karl Siemensmeyer | 1995-10-03 |
| 5436306 | Methine or azamethine dye polymers | Ruediger Sens, Heike Kilburg | 1995-07-25 |
| 5434231 | Azo dye polymers | Matthias Wiesenfeldt, Sabine Gruettner-Merten, Ruediger Sens, Heike Kilburg | 1995-07-18 |
| 5421834 | Cyan mixtures for dye transfer | Thomas Werner, Ruediger Sens | 1995-06-06 |
| 5417882 | Liquid-crystalline compounds | Volker Bach, Karl Siemensmeyer, Gerhard Wagenblast | 1995-05-23 |
| 5418555 | Reversible or irreversible production of an image | Volker Bach, Harald Fuchs, Karl Siemensmeyer, Gehard Wagenblast | 1995-05-23 |
| 5417884 | Defined oligomeric liquid-crystalline compounds having smectic liquid-crystalline phases | Karl Siemensmeyer, Detlev Joachimi, Carsten Tschierske, Olaf Agert | 1995-05-23 |
| 5401612 | Polyesters containing nonlinear-optical chromophores, and the use thereof | Ruediger Sens, Stefan Beckmann | 1995-03-28 |
| RE34877 | Azo dyes for thermotransfer printing | Volker Bach, Sabine Gruettner, Gunther Lamm, Helmut Reichelt, Ruediger Sens | 1995-03-14 |
| 5393645 | Production of structured polymer layers having nonlinear optical properties | Heike Kilburg, Hans-Joachim Lorkowski, Karl-Friedrich Pfeiffer | 1995-02-28 |
| 5393644 | Production of crosslinked polymer layers having nonlinear optical properties and their use | Heike Kilburg, Hans-Joachim Lorkowski, Karl-Friedrich Pfeiffer | 1995-02-28 |
| 5389596 | Dye mixtures for dye transfer | Gunther Lamm, Ruediger Sens | 1995-02-14 |
| 5384402 | Bichromophoric cyano-containing methine dyes and transfer thereof | Volker Bach, Ruediger Sens | 1995-01-24 |
| 5384378 | Copolymers with non-linear optical properties and the use thereof | Stefan Beckmann, Oskar Nuyken, Peter Strohriegl, Harry Mueller | 1995-01-24 |
| 5376150 | Use of pyridine dyes in the textile sector, dye mixtures with pyridine dyes, and triazolopyridine dyes having a thienyl radical | Arno Lange, Volker Bach, Ruediger Sens, Helmut Reichelt, Sabine Gruettner-Merten | 1994-12-27 |
| 5371266 | Bichromophoric cyano-containing methine dyes and transfer thereof | Volker Bach, Ruediger Sens | 1994-12-06 |
| 5364919 | Methine or azamethine dye polymers | Ruediger Sens, Heike Killburg | 1994-11-15 |