Michael Keller

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Lochham, DE

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Patents Grantslast 30 patents

Information Patent Grant
Circuit for supplying power to a dental photopolymerizing apparatus
- Patent number 4,839,566
- Issue date Jun 13, 1989
- ESPE Stiftung & Co. Produktions- und Vertriebs KG
- Wolf-Dietrich Herold
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Apparatus for treating dental materials
- Patent number 4,571,665
- Issue date Feb 18, 1986
- ESPE Fabrik Pharmazeutischer Praeparate GmbH
- Wolf-Dietrich Herold
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Apparatus for treating dental prosthetic parts with radiation
- Patent number 4,538,070
- Issue date Aug 27, 1985
- ESPE Fabrik Pharmazeutischer Praeparate GmbH
- Wolf-Dietrich Herold
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Apparatus for irradiating dental objects
- Patent number 4,412,134
- Issue date Oct 25, 1983
- ESPE Fabrik Pharmazeutischer Praeparate GmbH
- Wolf-Dietrich Herold
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE