Assignee
DENG DAVID
US57 patents
Top patents by PatentIndex Score
US8241034B2Aug 14, 2012
Fuel selection valve assemblies
DENG DAVID43 citations98
US8152515B2Apr 10, 2012
Fuel selectable heating devices
DENG DAVID59 citations98
US8011920B2Sep 6, 2011
Valve assemblies for heating devices
DENG DAVID57 citations98
US7967006B2Jun 28, 2011
Dual fuel heater
DENG DAVID51 citations98
US7967007B2Jun 28, 2011
Heater configured to operate with a first or second fuel
DENG DAVID51 citations98
US7730765B2Jun 8, 2010
Oxygen depletion sensor
DENG DAVID58 citations98
US7677236B2Mar 16, 2010
Heater configured to operate with a first or second fuel
DENG DAVID65 citations98
US7654820B2Feb 2, 2010
Control valves for heaters and fireplace devices
DENG DAVID77 citations98
US7607426B2Oct 27, 2009
Dual fuel heater
DENG DAVID90 citations98
US7434447B2Oct 14, 2008
Oxygen depletion sensor
DENG DAVID71 citations98
US7013886B2Mar 21, 2006
Plastic shell heater
DENG DAVID58 citations96
US8757202B2Jun 24, 2014
Dual fuel heating source
DENG DAVID15 citations93
US8757139B2Jun 24, 2014
Dual fuel heating system and air shutter
DENG DAVID24 citations93
US8752541B2Jun 17, 2014
Heating system
DENG DAVID14 citations93
US8517718B2Aug 27, 2013
Dual fuel heating source
DENG DAVID16 citations93
US8465277B2Jun 18, 2013
Heat engine with nozzle
DENG DAVID17 citations93
US8317511B2Nov 27, 2012
Control valves for heaters and fireplace devices
DENG DAVID21 citations93
US8297968B2Oct 30, 2012
Pilot assemblies for heating devices
DENG DAVID20 citations93
US8281781B2Oct 9, 2012
Dual fuel heater
DENG DAVID19 citations93
US8235708B2Aug 7, 2012
Heater configured to operate with a first or second fuel
DENG DAVID27 citations93
US8101062B2Jan 24, 2012
System and methods for determination of analyte concentration using time resolved amperometry
DENG DAVID33 citations93
US8088272B2Jan 3, 2012
System and methods for determination of analyte concentration using time resolved amperometry
DENG DAVID29 citations93
US6276742B1Aug 21, 2001
Roof and body mounted apparatus for covering automobile windshields
DENG DAVID30 citations89
US9523497B2Dec 20, 2016
Dual fuel heater with selector valve
DENG DAVID12 citations84
US9441840B2Sep 13, 2016
Heating apparatus with fan
DENG DAVID10 citations84
US9423123B2Aug 23, 2016
Safety pressure switch
DENG DAVID5 citations84
US9170016B2Oct 27, 2015
Dual fuel heater with selector valve
DENG DAVID10 citations84
US9140457B2Sep 22, 2015
Dual fuel heating system and air shutter
DENG DAVID4 citations84
US8985094B2Mar 24, 2015
Heating system
DENG DAVID10 citations84
US8915239B2Dec 23, 2014
Dual fuel heater with selector valve
DENG DAVID7 citations84
US8851065B2Oct 7, 2014
Dual fuel heating system with pressure sensitive nozzle
DENG DAVID6 citations84
US8568136B2Oct 29, 2013
Heater configured to operate with a first or second fuel
DENG DAVID10 citations84
US8545216B2Oct 1, 2013
Valve assemblies for heating devices
DENG DAVID14 citations84
US8516878B2Aug 27, 2013
Dual fuel heater
DENG DAVID12 citations84
US8506290B2Aug 13, 2013
Heating apparatus with air shutter adjustment
DENG DAVID14 citations84
US10240789B2Mar 26, 2019
Dual fuel heating assembly with reset switch
DENG DAVID2 citations73
US10222057B2Mar 5, 2019
Dual fuel heater with selector valve
DENG DAVID2 citations73
US10073071B2Sep 11, 2018
Heating system
DENG DAVID3 citations73
US10066838B2Sep 4, 2018
Dual fuel heating system
DENG DAVID3 citations73
US9829195B2Nov 28, 2017
Dual fuel heating source with nozzle
DENG DAVID6 citations73
US9822996B2Nov 21, 2017
Additive heat unit for HVAC heat pump system
DENG DAVID2 citations73
US9752779B2Sep 5, 2017
Heating assembly
DENG DAVID4 citations73
US9752782B2Sep 5, 2017
Dual fuel heater with selector valve
DENG DAVID2 citations73
US9518732B2Dec 13, 2016
Heating assembly
DENG DAVID4 citations73
US9222670B2Dec 29, 2015
Heating system with pressure regulator
DENG DAVID4 citations73
US9022064B2May 5, 2015
Dual fuel control device with auxiliary backline pressure regulator
DENG DAVID5 citations73
US6168225B1Jan 2, 2001
Apparatus for covering automobile windshields
DENG DAVID13 citations70
US9441833B2Sep 13, 2016
Heating assembly
DENG DAVID2 citations63
US9200801B2Dec 1, 2015
Fuel selection valve assemblies
DENG DAVID2 citations63
US9200802B2Dec 1, 2015
Dual fuel heater with selector valve
DENG DAVID3 citations63
Showing the top 50 of 57 patents by PatentIndex Score.