Roland Blumenthal

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Patents Grantslast 30 patents

Information Patent Grant
Evacuating device
- Patent number 7,264,439
- Issue date Sep 4, 2007
- Oerlikon Leybold Vacuum GmbH
- Ralf Adamietz
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Compound friction vacuum pump
- Patent number 6,890,146
- Issue date May 10, 2005
- Leybold Vakuum GmbH
- Roland Blumenthal
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
Evacuating device
- Publication number 20050220607
- Publication date Oct 6, 2005
- Ralf Adamietz
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Compound friction vacuum pump
- Publication number 20040033130
- Publication date Feb 19, 2004
- Roland Blumenthal
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...