John W. Barfield

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Ann Arbor, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Ceiling air deflector insert and method of assembly
- Patent number 8,882,573
- Issue date Nov 11, 2014
- T.C. AirTech, Inc.
- John W. Barfield
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
CEILING AIR DEFLECTOR INSERT AND METHOD OF ASSEMBLY
- Publication number 20150056914
- Publication date Feb 26, 2015
- T.C. AIR TECH, INC.
- John W. Barfield
- F24 - HEATING RANGES VENTILATING
Information Patent Application
CEILING AIR DEFLECTOR INSERT AND METHOD OF ASSEMBLY
- Publication number 20090124190
- Publication date May 14, 2009
- T.C. AIRTECH, INC.
- John W. Barfield
- F24 - HEATING RANGES VENTILATING