F23J 3/026
Cleaning the chimneys
Official title: {cleaning the chimneys}
F23J3/026 (Cleaning the chimneys) appears on 97 US grants and 27 published applications in this corpus.
Search patents in F23J- Granted patents
- 97
- Published applications
- 27
- Assignees
- 22
- Inventors
- 138
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 12 | 0 |
| 1986 | 7 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 8 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 2 | 3 |
| 2014 | 0 | 3 |
| 2015 | 2 | 1 |
| 2016 | 1 | 3 |
| 2017 | 2 | 3 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Chimney cleaning system28 Oct 2025US 12,453,992 B2
- Power chimney sweep27 Dec 2022US 11,536,450 B1
- Device for the cleaning of flue gas tubes of a boiler plant with a cleaning hose, a hose store and a hose guide2 Feb 2021US 10,907,913 B2Martin GmbH fuer Umwelt- und Energietechnik
- Filament retaining device17 Sep 2019US 10,415,826 B2Rodstation Ltd.
- Motor-driven chimney draft system30 Oct 2018US 10,113,743 B2exodraft a/s
- Management of offgas duct accretions in a smelting process30 Apr 2026US 2026/0117331 A1Nucor Corporation
- Chimney cleaning system29 Jan 2026US 2026/0027598 A1
- Chimney cleaning system26 Dec 2024US 2024/0424538 A1
- Method and Apparatus for Cleaning Chimneys8 Apr 2021US 2021/0102699 A1ChimSteam, LLC
- Combined Fire Starter and Chimney Cleaner10 May 2018US 2018/0127674 A1Renommé v/Allan Hansen
Most cited
By later US patents