W. Randall Erwin

Follow

Person

Tyler, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Device and method for recording air conditioning system information
- Patent number 8,117,862
- Issue date Feb 21, 2012
- Trane International Inc.
- Robert W. Helt
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Thermostat with energy saving backlit switch actuators and visual d...
- Patent number 7,299,996
- Issue date Nov 27, 2007
- American Standard International Inc.
- Carl L. Garrett
- G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

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
Thermostat with energy saving backlit switch actuators and visual d...
- Publication number 20060102732
- Publication date May 18, 2006
- American Standard International, Inc.
- Carl L. Garrett
- G05 - CONTROLLING REGULATING