Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6802459 | Device for preparing the walls of a mold for molding or shaping to make them ready for the next molding cycle | Hans-Dieter Renkl, Douwe Marten Kok, Thomas Junker | 2004-10-12 |
| 6546994 | Device for preparing the walls of mold for molding or shaping to make them ready for the next molding cycle | Hans-Dieter Renkl, Douwe Marten Kok, Thomas Junker | 2003-04-15 |
| 6192968 | Process for preparing the walls of a mold for molding or shaping to make them ready for the next molding cycle | Hans-Dieter Renkl, Douwe Marten Kok, Thomas Junker | 2001-02-27 |
| 5785252 | Two-component spray nozzle, in particular for a spray element of a spray tool of a die spraying device and interchangeable nozzle assembly for two-component spray nozzles | Rudi Kober | 1998-07-28 |
| 5603984 | Spray element especially for mold sprayers | Rudi Kober, Hans-Dieter Renkl | 1997-02-18 |
| 5524829 | Spray element especially for mold sprayers | Rudi Kober, Hans-Dieter Renkl | 1996-06-11 |
| 5049258 | Reprocessing of contaminated oils | Peter Seifried, Hartmut Hammer, Ralf Wehn | 1991-09-17 |
| 4982027 | Process for the reprocessing of carbon containing wastes | Joachim Korff, Axel Giehr, Kurt Erdt | 1991-01-01 |
| 4801305 | Motor-fuels | Heinrich Muller | 1989-01-31 |
| 4590306 | Process for the conversion of meta/para-cresol mixtures | Joachim Korff | 1986-05-20 |
| 4554388 | Process for isomerization and transalkylation of alkylphenols | Joachim Korff | 1985-11-19 |
| 4494960 | Process for the production of pumpable coal slurries | Wilfried Dolkemeyer, Ewald Meisenburg | 1985-01-22 |
| 4406824 | Catalysts for the o-substitution of phenols | Max Fremery, Joachim Korff | 1983-09-27 |
| 4405815 | Process for the production of acetaldehyde and ethanol | Joachim Korff | 1983-09-20 |
| 4400551 | Process for the production of acetaldehyde and ethanol | Joachim Korff | 1983-08-23 |
| 4359591 | Process for the o-substitution of phenols | Max Fremery, Joachim Korff | 1982-11-16 |
| 4319982 | Method of processing oil-shale or tar sand | Ewald Meisenburg | 1982-03-16 |
| 4283571 | Process for the catalytic isomerization of o-cresol | Reinhard Kiauk, Ewald Meisenburg | 1981-08-11 |