Keith E. Wellman

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Norman, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Sequential hot gas defrost method and apparatus
- Patent number 7,461,515
- Issue date Dec 9, 2008
- Keith E. Wellman
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Sequential defrosting of refrigerated display cases
- Patent number 6,629,422
- Issue date Oct 7, 2003
- Keith E. Wellman
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...

Patents Applicationslast 30 patents

Information Patent Application
Sequential hot gas defrost method and apparatus
- Publication number 20070119196
- Publication date May 31, 2007
- Keith E. Wellman
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Application
Control circuit and method for sequentially defrosting a series of...
- Publication number 20020184900
- Publication date Dec 12, 2002
- Keith E. Wellman
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
Enclosable evaporator/defroster unit for a refrigerated display case
- Publication number 20020184904
- Publication date Dec 12, 2002
- Keith E. Wellman
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...