Issued Patents All Time
Showing 51–63 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7936451 | Method for machining and estimating an optical lens designed as a semi-finished product | Helwig Buchenauer, Stephan Huttenhuis | 2011-05-03 |
| 7502663 | Correction method for chip removal machines | Christoph Weber | 2009-03-10 |
| 7422510 | Lens machining machine | Helwig Buchenauer, Klaus Krämer | 2008-09-09 |
| 7357054 | Highly dynamic processing machine for lenses | Helwig Buchenauer, Ulf Boerner, Klaus Kraemer | 2008-04-15 |
| 7318684 | File mechanism | Herbert Damhofer | 2008-01-15 |
| 7217176 | Polishing tool with several pressure zones | Helwig Buchenauer, Ulf Börner, Klaus Krämer | 2007-05-15 |
| 6631727 | Method of cleaning and/or regenerating wholly or partially de-activated catalysts of stack-gas nitrogen scrubbing | Jochen Benz, Peter Buck | 2003-10-14 |
| 6232254 | Method of cleaning and/or regenerating wholly or partially de-activated catalysts for stack-gas nitrogen scrubbing | Jochen Benz, Peter Buck | 2001-05-15 |
| 6131344 | Mixed construction material for slit wall of excavation pit lining | Ulrich Kuhner | 2000-10-17 |
| 5820303 | Excavation pit lining and method for its production | Ulrich Kuhner | 1998-10-13 |
| 5538718 | Cosmetic sticks | Marta Aul, Manfred Klier, Stephan Teichmann | 1996-07-23 |
| 4830873 | Process for applying a thin, transparent layer onto the surface of optical elements | Gerhard Benz, Gerda Mutschler | 1989-05-16 |
| 4238120 | Sealing device for sinter cooler | — | 1980-12-09 |