John D Prenger

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Jackson Center, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Scroll machine with seal
- Patent number 7,568,897
- Issue date Aug 4, 2009
- Emerson Climate Technologies, Inc.
- Walter T Grassbaugh
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Scroll machine with single plate floating seal
- Patent number 7,338,265
- Issue date Mar 4, 2008
- Emerson Climate Technologies, Inc.
- Walter T Grassbaugh
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
SCROLL MACHINE WITH SEAL
- Publication number 20080175737
- Publication date Jul 24, 2008
- Walter T. Grassbaugh
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Scroll machine with single plate floating seal
- Publication number 20060198748
- Publication date Sep 7, 2006
- Walter T. Grassbaugh
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...