F23J 11/00
Devices for conducting smoke or fumes
Official title: Devices for conducting smoke or fumes, e.g. flues (chimney stacks E04H12/28; removing cooking fumes from domestic stoves or ranges F24C15/20 {; fume conduits of furnaces, kilns, ovens, or retorts F27D17/302})
F23J11/00 (Devices for conducting smoke or fumes) appears on 125 US grants and 111 published applications in this corpus.
Search patents in F23J- Granted patents
- 125
- Published applications
- 111
- Assignees
- 101
- Inventors
- 286
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 4 |
| 2003 | 4 | 5 |
| 2004 | 1 | 2 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 5 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 2 | 4 |
| 2011 | 1 | 5 |
| 2012 | 1 | 2 |
| 2013 | 3 | 6 |
| 2014 | 1 | 5 |
| 2015 | 1 | 4 |
| 2016 | 5 | 9 |
| 2017 | 7 | 11 |
| 2018 | 10 | 10 |
| 2019 | 7 | 3 |
| 2020 | 13 | 6 |
| 2021 | 2 | 6 |
| 2022 | 5 | 7 |
| 2023 | 3 | 2 |
| 2024 | 2 | 6 |
| 2025 | 4 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F23J 11/02Devices for conducting smoke or fumes: for conducting smoke or fumes originating25
- F23J 11/08Devices for conducting smoke or fumes: for portable apparatus14
- F23J 11/12Smoke conduit systems for factories or large buildings12
- F23J 11/04In locomotives9
- F23J 11/10Devices for conducting smoke or fumes: for tents0
Recent patents
- Sensor network9 Dec 2025US 12,492,947 B2Airmont AS
- Heat exchange flue and heat exchange device21 Oct 2025US 12,449,125 B2
- Portable water heater26 Aug 2025US 12,398,918 B2Zhongshan Powtek Appliances Mfg., Ltd.
- Collective exhaust system15 Apr 2025US 12,276,421 B2Noritz Corporation
- Arrangement having two burners5 Mar 2024US 11,920,785 B2Truma Gerätetechnik GmbH & Co. KG
- Control device, exhaust gas supply system, control method, and program6 Aug 2026US 2026/0227064 A1Mitsubishi Heavy Industries, Ltd.
- Air-conditioning apparatus for indoor environments25 Sep 2025US 2025/0297750 A1Mcz Group S.P.A.
- Smoke exhaust pipe8 May 2025US 2025/0146663 A1Junsky Appliances Limited
- Flue gas conditioning19 Dec 2024US 2024/0416279 A1
- Flue gas conditioning19 Dec 2024US 2024/0416281 A1
Most cited
By later US patents
- Flow duct for the flue gas of a flue gas-cleaning plant102US 4,919,170 AFlachglas Aktiengesellschaft · 1990
- Coke oven flue gas sharing99US 6,596,128 B2Sun Coke Company · 2003
- Smoke generator69US 4,436,100 A1984
- Exhaust gas capture system for ocean going vessels45US 8,402,746 B22013
- Ellipsoid exhaust intake bonnet (EIB) for maritime emissions control system42US 8,075,651 B22011