F28G 7/00
Cleaning by vibration or pressure waves
Official title: Cleaning by vibration {or pressure waves}
F28G7/00 (Cleaning by vibration or pressure waves) appears on 182 US grants and 155 published applications in this corpus.
Search patents in F28G- Granted patents
- 182
- Published applications
- 155
- Assignees
- 110
- Inventors
- 390
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 7 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 4 |
| 2003 | 2 | 0 |
| 2004 | 3 | 3 |
| 2005 | 1 | 14 |
| 2006 | 4 | 6 |
| 2007 | 3 | 7 |
| 2008 | 5 | 8 |
| 2009 | 1 | 9 |
| 2010 | 4 | 7 |
| 2011 | 5 | 12 |
| 2012 | 6 | 6 |
| 2013 | 7 | 6 |
| 2014 | 5 | 3 |
| 2015 | 4 | 4 |
| 2016 | 3 | 8 |
| 2017 | 4 | 5 |
| 2018 | 4 | 10 |
| 2019 | 6 | 4 |
| 2020 | 6 | 8 |
| 2021 | 5 | 6 |
| 2022 | 6 | 10 |
| 2023 | 9 | 5 |
| 2024 | 5 | 6 |
| 2025 | 6 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Three-dimensionally distributed liquid atomization heat exchanger, control method thereof, refrigeration system, and air conditioner5 May 2026US 12,618,595 B2Beijing Jingkelun Engineering Design and Research Institute Co., Ltd.
- Method for identifying and eliminating ammonium salt deposition characteristics in pipe bundle of hydrogenation air cooler14 Apr 2026US 12,601,553 B2Zhejiang Sci-Tech University
- System and method for monitoring and diagnosis of heat exchanger tube health23 Sep 2025US 12,422,411 B2Innovas Technologies LLC
- Cleaning system and method1 Jul 2025US 12,345,484 B2Dos Viejos Amigos, LLC
- Heat exchanger tube block, exhaust heat recovery boiler, and method of constructing exhaust heat recovery boiler24 Jun 2025US 12,339,077 B2Kawasaki Jukogyo Kabushiki Kaisha
- System and method for monitoring and diagnosis of heat exchanger tube health1 Jan 2026US 2026/0002910 A1Innovas Technologies LLC
- System and method for maintaining efficiency of a fractal heat sink6 Feb 2025US 2025/0044036 A1Fractal Heatsink Technologies LLC
- Fastening Apparatus for a Cleaning Device Based on Introducing High-Amplitude Pressure Waves6 Feb 2025US 2025/0044047 A1Explo Engineering GmbH
- System and method for maintaining efficiency of a heat sink25 Jul 2024US 2024/0247888 A1Fractal Heatsink Technologies LLC
- Method for identifying and eliminating ammonium salt deposition characteristics in pipe bundle of hydrogenation air cooler11 Jul 2024US 2024/0230254 A1Zhejiang Sci-Tech University
Most cited
By later US patents
- Method for acoustical cleaning51US 4,120,699 A1978
- Mitigation of in-tube fouling in heat exchangers using controlled mechanical vibration48US 7,836,941 B2ExxonMobil Research and Engineering Company · 2010
- Flat heat exchanger plate and bulk material heat exchanger using the same47US 7,093,649 B22006
- Method of pressure pulse cleaning the interior of heat exchanger tubes located within a pressure vessel such as a tube bundle heat exchanger, boiler, condenser or the like46US 4,645,542 AAnco Engineers, Inc. · 1987
- Chemical cleaning method for steam generators utilizing pressure pulsing38US 5,154,197 AWestinghouse Electric Corp. · 1992