F28G 1/02
Non-rotary: having brushes
Official title: having brushes ({F28G1/12 takes precedence;} brushes A46B)
F28G1/02 (Non-rotary: having brushes) appears on 29 US grants and 30 published applications in this corpus.
Search patents in F28G- Granted patents
- 29
- Published applications
- 30
- Assignees
- 24
- Inventors
- 84
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 3 |
| 2012 | 0 | 0 |
| 2013 | 2 | 1 |
| 2014 | 0 | 2 |
| 2015 | 2 | 1 |
| 2016 | 1 | 3 |
| 2017 | 1 | 3 |
| 2018 | 1 | 3 |
| 2019 | 2 | 0 |
| 2020 | 2 | 1 |
| 2021 | 0 | 1 |
| 2022 | 2 | 1 |
| 2023 | 0 | 2 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for cleaning and/or inspecting a pipeline21 Apr 2026US 12,607,287 B2Envirobot GmbH & Co. KG
- Direct drive for HVAC air duct cleaning system6 Jan 2026US 12,516,896 B2Rotobrush International LLC
- Plate and shell heat exchanging system having a divided manifold tube17 May 2022US 11,333,451 B2
- Device for sanitizing air-conditioners1 Feb 2022US 11,235,078 B2
- Coil brush7 Apr 2020US 10,612,868 B2
- Wastewater heat exchanger27 Aug 2026US 2026/0251411 A1
- Direct Drive for HVAC Air Duct Cleaning System2 Apr 2026US 2026/0092750 A1Rotobrush International LLC
- Automated shell and tube heat exchanger cleaner1 Jan 2026US 2026/0002744 A1Intel Corporation
- System And Method For Cleaning And/Or Inspecting A Pipeline30 Nov 2023US 2023/0383892 A1Envirobot GmbH & Co. KG
- Cleaning device for a refrigerated display counter26 Oct 2023US 2023/0341199 A1
Most cited
By later US patents
- Duct cleaning apparatus47US 5,813,089 AAbatement Technologies, Inc. · 1998
- Plate-pin panel heat exchanger and panel components therefor27US 4,497,363 A1985
- Energy conservation in shower bathing20US 4,398,308 A1983
- Tube cleaning tool for removal of hard deposits19US 5,153,963 AConco Systems, Inc. · 1992
- Energy conservation in shower bathing18US 4,300,247 A1981