ClassID:

157113

F23M2900/11021 - CPC Classification

Classification description:

Special features of, or arrangements for combustion chambers Means for avoiding accidental fires in rooms where the combustion device is located

Recent Application in this class:
#1
20250249300
2025-08-07

GAS FURNACE WITH FLAME ARRESTOR

#2
20230243501
2023-08-03

PARTICLE HEATING LANDSCAPE FURNACE

#3
20180077352
2018-03-15

Method and device for eliminating thermal interference for infrared and video-based early fire detection

#4
20170234531
2017-08-17

Wellhead gas heater

#5
20170130607
2017-05-11

Gas accumulation detection and ventilation in a gas turbine enclosure

#6
20150330631
2015-11-19

Method for preventing explosion of exhaust gas in decompression processing apparatus

#7
20120227682
2012-09-13

Systems and methods for controlling a water heater

#8
20120175539
2012-07-12

Safety device against combustible gas leaks for household appliances

#9
20120023896
2012-02-02

AUXILIARY POWER UNIT FIRE ENCLOSURE DRAIN

#10
20110020759
2011-01-27

GAS SUPPLY INTERFACE FOR A WATER HEATER

#11
20100154723
2010-06-24

ULTRA LOW NOx WATER HEATER

#12
20100116227
2010-05-13

Systems and methods for controlling a water heater

#13
20100101507
2010-04-29

WATER HEATERS WITH FUEL LINE AND DOOR ASSEMBLY

#14
20090101085
2009-04-23

Systems and methods for controlling a water heater

#15
20080078337
2008-04-03

Systems and methods for controlling a water heater

#16
20070221142
2007-09-27

Ultra low NOx water heater

#17
20070215067
2007-09-20

Water heater with flammable vapor sensor

#18
20070215066
2007-09-20

Water heater with flammable vapor and co sensors

#19
20070079771
2007-04-12

Water heater with air intake and exhaust system

#20
20060244618
2006-11-02

Control techniques for shut-off sensors in fuel-fired heating appliances

#21
20060210937
2006-09-21

Vapor resistant fuel burning appliance

#22
20060191497
2006-08-31

Water heater with air intake and exhaust system

#23
20060174846
2006-08-10

System and methods for controlling a water heater

#24
20060150926
2006-07-13

Flammable vapor sensing control for a water heater

#25
20060131037
2006-06-22

Flame arrester

#26
20060081198
2006-04-20

Water heater with air intake and exhaust system

#27
20050279291
2005-12-22

Apparatus and methods for controlling a water heater

#28
20050202358
2005-09-15

Apparatus and method for shutting down fuel fired appliance

#29
20050120980
2005-06-09

Safety shut off for water heaters

#30
20050092262
2005-05-05

Secondary burner for sealed combustion chamber of a gas-fired hot water heater

#31
20050081603
2005-04-21

Tamper resistant vapor sensor method and system

#32
20050053886
2005-03-10

Flame arrester