Klaus Krengel

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Solingen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method and device for working the edges of spectacle lenses
- Patent number 7,651,221
- Issue date Jan 26, 2010
- Buchmann Deutschland GmbH
- Klaus Krengel
- B24 - GRINDING POLISHING
Information Patent Grant
Unit for the form machining of the edges of spectacle lenses and me...
- Patent number 6,974,363
- Issue date Dec 13, 2005
- WECO Optik GmbH
- Ralf Werner
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
Method and Device for Working the Edges of Spectacle Lenses
- Publication number 20090225274
- Publication date Sep 10, 2009
- BUCHMANN DEUTSCHLAND GMBH
- Klaus Krengel
- G05 - CONTROLLING REGULATING
Information Patent Application
Unit for the form machining of the edges of spectacle lenses and me...
- Publication number 20050079798
- Publication date Apr 14, 2005
- WECO Optik GmbH
- Ralf Werner
- B24 - GRINDING POLISHING