Issued Patents All Time
Showing 26–50 of 77 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6107451 | Hardener for anhydride group-containing polymers | Alex Wegmann | 2000-08-22 |
| 5923218 | Device with amplifier means including safety means, and with filter means connected to the amplifier means | — | 1999-07-13 |
| 5900286 | Method of producing an attenuating structure on a surface wave component | Heiner Bayer, Winfried Plundrich, Hans Stelzl, Wolfgang Pahl | 1999-05-04 |
| 5879894 | Long emission wavelength chemiluminescent compounds and their use in test assays | Say-Jong Law, Qingping Jiang, John T. Unger, Elizabeth K. Krodel, Jun Xi | 1999-03-09 |
| 5821318 | Hardener composition for epoxy resins | — | 1998-10-13 |
| 5702887 | Long emission wavelength chemiluminescent compounds and their use in test assays | Say-Jong Law, Qingping Jiang, John T. Unger, Elizabeth K. Krodel | 1997-12-30 |
| 5623040 | Polymerisable photochromic naphthacenediones, polymers of these monomers, process for their preparation and the use thereof | Evelyn Fischer | 1997-04-22 |
| 5583223 | Thermochromic compounds, their preparation and the use thereof | Beat Schmidhalter, Heinz Wolleb | 1996-12-10 |
| 5543572 | Monocarboxamides of polyamines | Christine Helbling | 1996-08-06 |
| 5488119 | Polymerisable photochromic naphthacenediones, polymers of these monomers, process for their preparation and the use thereof | Evelyn Fischer-Reimann | 1996-01-30 |
| 5481002 | Azolyl thermochromic compounds | Beat Schmidhalter, Heinz Wolleb | 1996-01-02 |
| 5432049 | Photochromic composition | Evelyn Fischer, Jurgen Finter, Kurt Meier, Martin Roth | 1995-07-11 |
| 5407885 | Photochromic naphthacenequinones, process for their preparation and the use thereof | Jurgen Finter, Heinz Spahni | 1995-04-18 |
| 5395752 | Long emission wavelength chemiluminescent compounds and their use in test assays | Say-Jong Law, Qingping Jiang, John T. Unger, Elizabeth K. Krodel | 1995-03-07 |
| 5391749 | Substituted naphthacene-5,12-diones and their use | Marcus Baumann, Jurgen Finter, Vratislav Kvita, Carl W. Mayer, Wolfgang Wernet | 1995-02-21 |
| 5338863 | Process for the preparation of tetrathiotetracenes | Marcus Baumann, Carl W. Mayer, Wolfgang Wernet | 1994-08-16 |
| 5310909 | Photochromic compounds, a process for their preparation, and their use | Evelyn Fischer, Jurgen Finter, Kurt Meier, Martin Roth | 1994-05-10 |
| 5300663 | Photochromic naphthacenequinones, process for their preparation and the use thereof | Evelyn Fischer, Ernst Minder, Manfred Hofmann, Jurgen Finter, Heinz Spahni | 1994-04-05 |
| 5229507 | Substituted naphthalocyanines and their use | Marcus Baumann, Hanspeter Stricker, Jurgen Vogt, Jin Mizuguchi | 1993-07-20 |
| 5225525 | Photochromic benzothioxanthone oxides, process for their preparation and the use thereof | Jurgen Finter, Heinz Spahni | 1993-07-06 |
| 5220048 | Substituted benzocyclobutenes, a process for their preparation and their use | Marcus Baumann, Vratislav Kvita, Carl W. Mayer | 1993-06-15 |
| 5208354 | Photochromic naphthacenequinones, process for their preparation and the use thereof | Jurgen Finter, Heinz Spahni | 1993-05-04 |
| 5206395 | Photochromic naphthacenequinones, process for their preparation and the use thereof | Evelyn Fischer, Ernst Minder, Manfred Hofmann, Jurgen Finter, Heinz Spahni | 1993-04-27 |
| 5206390 | Substituted bisacyloxynaphthacenes | Marcus Baumann, Carl W. Mayer, Wolfgang Wernet | 1993-04-27 |
| 5177227 | Photochromic naphthacenequinones, process for their preparation and the use thereof | Evelyn Fischer, Ernst Minder, Manfred Hofmann, Jurgen Finter, Heinz Spahni | 1993-01-05 |