Bernd Michelfelder

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Karlsruhe, DE

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Patents Grantslast 30 patents

Information Patent Grant
Heat exchanger, in particular for swimming pools
- Patent number 6,789,615
- Issue date Sep 14, 2004
- Witzenmann GmbH
- Bernd Michelfelder
- F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Heat exchanger, in particular for swimming pools
- Publication number 20040035565
- Publication date Feb 26, 2004
- Witzenmann GmbH
- Bernd Michelfelder
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
Flexible conduit element with a connection device attached to at le...
- Publication number 20020079702
- Publication date Jun 27, 2002
- Witzenmann GmbH Metallschlauch-Fabrik Pforzheim
- Roland Baumann
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Heat exchanger, in particular for swimming pools
- Publication number 20020074111
- Publication date Jun 20, 2002
- Bernd Seeger
- F28 - HEAT EXCHANGE IN GENERAL