F23J 2213/00
Chimneys or flues
F23J2213/00 (Chimneys or flues) appears on 221 US grants and 215 published applications in this corpus.
Search patents in F23J- Granted patents
- 221
- Published applications
- 215
- Assignees
- 141
- Inventors
- 439
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 8 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 9 | 0 |
| 2001 | 5 | 2 |
| 2002 | 1 | 6 |
| 2003 | 8 | 3 |
| 2004 | 4 | 7 |
| 2005 | 4 | 11 |
| 2006 | 4 | 8 |
| 2007 | 1 | 10 |
| 2008 | 3 | 6 |
| 2009 | 2 | 11 |
| 2010 | 4 | 11 |
| 2011 | 2 | 6 |
| 2012 | 5 | 5 |
| 2013 | 9 | 12 |
| 2014 | 8 | 9 |
| 2015 | 2 | 10 |
| 2016 | 8 | 9 |
| 2017 | 6 | 18 |
| 2018 | 12 | 9 |
| 2019 | 13 | 12 |
| 2020 | 11 | 12 |
| 2021 | 6 | 8 |
| 2022 | 13 | 10 |
| 2023 | 4 | 5 |
| 2024 | 6 | 5 |
| 2025 | 6 | 6 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Non-return valve for a flow channel through which a flow of air flows24 Feb 2026US 12,560,242 B2Skoberne GmbH
- Sensor network9 Dec 2025US 12,492,947 B2Airmont AS
- Heat exchange flue and heat exchange device21 Oct 2025US 12,449,125 B2
- Intake device for a chimney termination6 May 2025US 12,292,192 B2Rlh Industries, Inc.
- Joint seal system and method25 Mar 2025US 12,259,130 B2The Schebler Co.
- Chimney Cover21 May 2026US 2026/0139833 A1
- Exhaust port member23 Apr 2026US 2026/0110431 A1Rinnai Corporation
- Exhaust adapter26 Mar 2026US 2026/0085834 A1Rinnai Corporation
- Cleanout opening for chimneys8 Jan 2026US 2026/0009536 A1
- Intake device for a chimney termination20 Nov 2025US 2025/0354688 A1Rlh Industries, Inc.
Most cited
By later US patents
- Vent hood and flashing assembly for metal roof46US 8,209,923 B12012
- Furnace inducer outlet box assembly42US 4,603,680 ACarrier Corporation · 1986
- Chimney liner system41US 4,846,147 ASimpson Dura Vent Company, Inc. · 1989
- Method and apparatus for powered flue products exhaust and preheated combustion air supply37US 4,262,608 A1981
- Fume duct joint with clamping collar29US 5,961,154 A1999