James Thomas Schaefer

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Tyler, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
System and Method for Oil Return in an HVAC system
- Patent number 8,783,048
- Issue date Jul 22, 2014
- Trane International Inc.
- John R. Edens
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
System and Method for Oil Return in an HVAC System
- Publication number 20130067943
- Publication date Mar 21, 2013
- Trane International Inc.
- Jonathan David Douglas
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Device and method for recording air conditioning system information
- Publication number 20080223944
- Publication date Sep 18, 2008
- American Standard International, Inc.
- Robert W. Helt
- F24 - HEATING RANGES VENTILATING
Information Patent Application
System and method for controlling working fluid charge in a vapor c...
- Publication number 20080011003
- Publication date Jan 17, 2008
- AMERICAN STANDARD INTERNATIONAL INC.
- Jonathan David Douglas
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...