Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5486213 | Process for the dyeing of leather with dye mixtures | Campbell Page, Alois Puntener | 1996-01-23 |
| 5376147 | Process for dyeing leather with dye mixtures | Campbell Page, Alois Puntener | 1994-12-27 |
| 5354341 | Process for dyeing leather with dye mixtures | Thomas P. Campbell, Alois Puntener | 1994-10-11 |
| 5176717 | Use of sulfonated polyazo dyes for dyeing leather in brilliant fast red shades | Rudolf Schaulin, Alois Puntener | 1993-01-05 |
| 5152801 | Process for dyeing leather with an aqueous bath containing sulfonated carbon black and black anionic dye | Hans Altermatt, Alois Puntener, Ernst Tempel | 1992-10-06 |
| 4818815 | Cationic 1,2,3-thiadiazole-azo-aniline or tetrahydroquinoline compounds | — | 1989-04-04 |
| 4792123 | Metallurgical plant | Alfred Weber, Aglas Johann, Johann Poperahatzky, Georg Stastny | 1988-12-20 |
| 4754022 | Cationic dyes from diazotized 5-aminoisothiazoles and tetrahydroquinolines or indolines | — | 1988-06-28 |
| 4697423 | Connecting line between a compressor of an exhaust gas turbocharger flangedly connected at an exhaust gas manifold of an internal combustion engine and a suction pipe | Ulrich Conrad, Michael Grohn | 1987-10-06 |
| 4640256 | Internal combustion engine exhaust gas recycling arrangement | Ulrich Conrad, Gerhard Gruber | 1987-02-03 |
| 4530682 | Tensioning arrangement with a damping device for a belt drive | Gerhard Gruber, Ulrich Conrad, Jiri Vlach | 1985-07-23 |
| 4513571 | Method of supercharging internal combustion engines using exhaust turbochargers with variable exhaust gas swallowing capacity | Ernst Jenny, Andreas Mayer | 1985-04-30 |
| 4499731 | Controllable exhaust gas turbocharger | — | 1985-02-19 |
| 4495906 | Valve guide arrangement for the valve stem of a valve in an internal combustion engine | Franz Bender, Gernot Hertweck, Michael Grohn | 1985-01-29 |
| 4289880 | Cationic oxazine dyes | — | 1981-09-15 |
| 4233028 | Process for the level dyeing of polyacrylonitrile materials of slow, normal and rapid absorptive capacity | Josef Koller, Ulrich Horn, Manfred Motter, Pierre Galafassi | 1980-11-11 |
| 4181499 | Process for the level dyeing of polyacrylonitrile materials of slow, normal and rapid absorptive capacity | Joseph A. Koller, Manfred Motter, Ulrich Horn, Pierre Galafassi | 1980-01-01 |