A62C 4/04
In flues or chimneys
Official title: in flues or chimneys
A62C4/04 (In flues or chimneys) appears on 23 US grants and 14 published applications in this corpus.
Search patents in A62C- Granted patents
- 23
- Published applications
- 14
- Assignees
- 13
- Inventors
- 31
- Latest grant
- 11 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 1 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 2 |
| 2021 | 1 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 2 | 1 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Anti-fire safety system for a vehicle having hydrogen stored on board, and related vehicle11 Mar 2025US 12,247,703 B2ALSTOM Holdings
- Screening machine for screening solid material4 Mar 2025US 12,240,015 B2Pal S.R.L.
- Flame arrester for process devices28 May 2024US 11,992,721 B2Rosemount Inc.
- Vent assembly28 May 2024US 11,993,454 B2Elmac Technologies Limited
- Flame arrester/burner assembly with a multifarious element for preventing deflagrations and extended endurance burning time5 Dec 2023US 11,833,380 B2
- Screening machine for screening solid material8 Aug 2024US 2024/0261820 A1Pal S.R.L.
- Flame arrester for process devices13 Jan 2022US 2022/0008770 A1Rosemount Inc.
- Anti-fire safety system for a vehicle having hydrogen stored on board, and related vehicle21 Oct 2021US 2021/0325002 A1Alstom Transport Technologies
- Vent assembly24 Jun 2021US 2021/0188539 A1Elmac Technologies Limited
- Flame arrester/burner assembly with a multifarious element for preventing deflagrations and extended endurance burning time3 Dec 2020US 2020/0376309 A1
Most cited
By later US patents
- Chimney by-pass39US 4,821,473 A1989
- Chimney safety and control system24US 5,555,876 A1996
- Heat responsive fire extinguishing assembly for a ventilating duct11US 6,105,678 AShie Yu Machine Parts Industrial Co., Ltd. · 2000
- Chimney fire extinguishing apparatus4US 5,247,998 A1993
- Fire preventing duct system4US 5,493,820 A1996