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Roger L. Boydstun
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Tyler, TX, US
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Patents Grants
last 30 patents
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Patent Grant
Method of twinning air conditioning units
Patent number
8,091,373
Issue date
Jan 10, 2012
Trane International, Inc.
Gordon Jeffrey Hugghins
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Control system interface with display for air conditioning apparatus
Patent number
7,975,494
Issue date
Jul 12, 2011
Trane International, Inc.
Roger L. Boydstun
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Contingency mode operating method for air conditioning system
Patent number
7,664,575
Issue date
Feb 16, 2010
Trane International Inc.
Roger L. Boydstun
G05 - CONTROLLING REGULATING
Patents Applications
last 30 patents
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Patent Application
Control system interface with display for air conditioning apparatus
Publication number
20090090115
Publication date
Apr 9, 2009
American Standard Intemational Inc
Roger L. Boydstun
F24 - HEATING RANGES VENTILATING
Information
Patent Application
Twinning of air conditioning units
Publication number
20090044552
Publication date
Feb 19, 2009
American Standard International Inc
Gordon Jeffrey Hugghins
F24 - HEATING RANGES VENTILATING
Information
Patent Application
Contingency mode operating method for air conditioning system
Publication number
20090048715
Publication date
Feb 19, 2009
American Standard International Inc
Roger L. Boydstun
G05 - CONTROLLING REGULATING