John P. Graham

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Elyria, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Burner ignition controller and improved coil bobbin
- Patent number 7,924,546
- Issue date Apr 12, 2011
- R.W. Beckett Corporation
- John P. Graham
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Fail safe HVAC temperature and medium presence sensor
- Patent number 7,473,868
- Issue date Jan 6, 2009
- R.W. Beckett Corporation
- John E. Bohan, Jr.
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Timer circuit for valve activation in oil burner system
- Patent number 6,929,465
- Issue date Aug 16, 2005
- R.W. Beckett Corporation
- John P. Graham
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Timer circuit for valve activation in oil burner system
- Patent number 6,888,390
- Issue date May 3, 2005
- R.W. Beckett Corporation
- John P. Graham
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES

Patents Applicationslast 30 patents

Information Patent Application
BURNER IGNITION CONTROLLER AND IMPROVED COIL BOBBIN
- Publication number 20080090191
- Publication date Apr 17, 2008
- John P. Graham
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Application
Fail safe HVAC temperature and medium presence sensor
- Publication number 20070000908
- Publication date Jan 4, 2007
- R. W. Beckett Corporation
- John E. Bohan
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Timer circuit for valve activation in oil burner system
- Publication number 20040076914
- Publication date Apr 22, 2004
- John P. Graham
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES