A24F 9/04
Cleaning devices for pipes
Official title: Cleaning devices for pipes (combined with pipes A24F3/02)
A24F9/04 (Cleaning devices for pipes) appears on 61 US grants and 84 published applications in this corpus.
Search patents in A24F- Granted patents
- 61
- Published applications
- 84
- Assignees
- 18
- Inventors
- 152
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 3 |
| 2011 | 2 | 2 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 2 | 0 |
| 2015 | 0 | 5 |
| 2016 | 1 | 2 |
| 2017 | 1 | 4 |
| 2018 | 3 | 10 |
| 2019 | 1 | 6 |
| 2020 | 2 | 8 |
| 2021 | 4 | 7 |
| 2022 | 4 | 13 |
| 2023 | 3 | 4 |
| 2024 | 8 | 10 |
| 2025 | 5 | 4 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Storage case and methods thereof2 Jun 2026US 12,642,296 B1Asher R. Solutions, Inc.
- Systems and methods for cleaning a pipe19 May 2026US 12,628,866 B2
- Devices and methods for application of a cover to an opening of variable sizes25 Nov 2025US 12,479,629 B1Hygenix LLC
- Smoking vessel cleaning apparatus30 Sep 2025US 12,427,554 B2
- Devices for vaporization of compounds comprising an oxygen detection mechanism upstream of the vaporization chamber and vaporization device with chopping element internal to the vaporization chamber19 Aug 2025US 12,390,604 B2
Most cited
By later US patents
- Brush cleaning unit for the heater fixture of a smoking device213US 6,418,938 B1Philip Morris Incorporated · 2002
- Brush cleaning unit for the heater fixture of a smoking device139US 6,119,700 APhilip Morris Incorporated · 2000
- Composite smoker's kit23US 4,600,022 A1986
- Storage receptacle for smoking material and system and method for using same19US 8,584,842 B22013
- Method and apparatus for cleaning a heating element of aerosol generating device18US 10,130,121 B2Philip Morris Products S. A. · 2018