Patents-Review.com
ClassID:

156823 ⎘

F23J2213/204 - CPC Classification

Classification description:

Chimneys or flues; Joints; Connections Sealing arrangements

Recent Application in this class:
#1
20260085834
2026-03-26

EXHAUST ADAPTER

 #2
20250290630
2025-09-18

JOINT SEAL SYSTEM & METHOD

 #3
20250216073
2025-07-03

Joint Seal System & Method

 #4
20240288163
2024-08-29

Joint Seal System & Method

 #5
20230194084
2023-06-22

Joint seal system and method

 #6
20220333772
2022-10-20

Smoke Chamber Sealing Method and System

 #7
20220178537
2022-06-09

Joint Seal System & Method

 #8
20200166147
2020-05-28

NONRETURN VALVE

 #9
20190170350
2019-06-06

Joint seal system and method

 #10
20180195720
2018-07-12

Air supply and exhaust adapter for combustion apparatus

 #11
20170284665
2017-10-05

Closing member and exhaust structure for combustion apparatus

 #12
20170130960
2017-05-11

Exhaust adapter, exhaust structure for water heater, and method for installing exhaust adapter

 #13
20160252247
2016-09-01

Retractable Hideaway Chimney Damper Cap

 #14
20150061284
2015-03-05

Expansion joint spring clip

 #15
20150056903
2015-02-26

Exhaust adapter, exhaust structure for water heater, and method for installing exhaust adapter

 #16
20140326353
2014-11-06

Expansion joint in a vertical channel

 #17
20130291856
2013-11-07

Water seal at backpass economizer gas outlet

 #18
20130091864
2013-04-18

Quick disengaging field joint for exhaust system components of gas turbine engines

 #19
20100267327
2010-10-21

Retrofitted corrosive resistant venting system

 #20
20090235916
2009-09-24

NON-RETURN VALVE FOR AN EXHAUST DUCT OF FLUE GASSES

 #21
20080007055
2008-01-10

Supply and exhaust pipe

 #22
20060249142
2006-11-09

Pipe coupling for a venting system

 #23
20050153647
2005-07-14

Flues for industrial chimneys