F28F 19/00
Preventing the formation of deposits or corrosion
Official title: Preventing the formation of deposits or corrosion, e.g. by using filters {or scrapers}
F28F19/00 (Preventing the formation of deposits or corrosion) appears on 1,611 US grants and 1,676 published applications in this corpus.
Search patents in F28F- Granted patents
- 1,611
- Published applications
- 1,676
- Assignees
- 1,006
- Inventors
- 4,309
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 13 | 0 |
| 1978 | 20 | 0 |
| 1979 | 8 | 0 |
| 1980 | 15 | 0 |
| 1981 | 27 | 0 |
| 1982 | 14 | 0 |
| 1983 | 21 | 0 |
| 1984 | 19 | 0 |
| 1985 | 22 | 0 |
| 1986 | 19 | 0 |
| 1987 | 27 | 0 |
| 1988 | 25 | 0 |
| 1989 | 23 | 0 |
| 1990 | 19 | 0 |
| 1991 | 22 | 0 |
| 1992 | 22 | 0 |
| 1993 | 26 | 0 |
| 1994 | 23 | 0 |
| 1995 | 15 | 0 |
| 1996 | 18 | 0 |
| 1997 | 20 | 0 |
| 1998 | 32 | 0 |
| 1999 | 24 | 0 |
| 2000 | 17 | 0 |
| 2001 | 37 | 11 |
| 2002 | 22 | 35 |
| 2003 | 33 | 37 |
| 2004 | 23 | 38 |
| 2005 | 21 | 49 |
| 2006 | 21 | 64 |
| 2007 | 33 | 53 |
| 2008 | 23 | 47 |
| 2009 | 21 | 62 |
| 2010 | 30 | 65 |
| 2011 | 22 | 59 |
| 2012 | 42 | 69 |
| 2013 | 44 | 77 |
| 2014 | 37 | 71 |
| 2015 | 50 | 97 |
| 2016 | 47 | 90 |
| 2017 | 59 | 86 |
| 2018 | 66 | 111 |
| 2019 | 90 | 107 |
| 2020 | 66 | 78 |
| 2021 | 71 | 71 |
| 2022 | 64 | 72 |
| 2023 | 48 | 68 |
| 2024 | 57 | 70 |
| 2025 | 53 | 56 |
| 2026 | 29 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F28F 19/02Preventing the formation of deposits or corrosion: by using coatings659
- F28F 19/006Preventing deposits of ice144
- F28F 19/01Preventing the formation of deposits or corrosion: by using means for separating136
- F28F 19/002Preventing the formation of deposits or corrosion: by using inserts or attachments126
- F28F 19/008Preventing the formation of deposits or corrosion: by using scrapers109
- F28F 19/004Preventing the formation of deposits or corrosion: by using protective electric currents71
Recent patents
- Heat exchanger6 Oct 2026US 12,753,336 B2Daikin Industries, Ltd.
- Composite coating film, heat exchanger comprising same, and method for manufacturing heat exchanger25 Aug 2026US 12,716,662 B2LG Electronics Inc.
- Coating composition, coating film, and micro channel type heat exchanger using the same25 Aug 2026US 12,716,663 B2LG Electronics Inc.
- Amphiphilic minichannel surface structures to enhance heat transfer coefficient11 Aug 2026US 12,704,333 B2Drexel University
- Heat exchanger with corrosion reducing sacrificial component21 Jul 2026US 12,687,348 B2Valeo Autosystemy Sp. z o.o.
- Dishwasher27 Aug 2026US 2026/0248361 A1LG Electronics Inc.
- Heat exchanger27 Aug 2026US 2026/0251397 A1
- Wastewater heat exchanger27 Aug 2026US 2026/0251411 A1
- Apparatus, System and Method for Heat Exchanger End Plate Erosion Resistance13 Aug 2026US 2026/0235371 A1Westermeyer Industries Inc.
- Heat exchanger and air handling unit6 Aug 2026US 2026/0227140 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Method of installing a tube sleeve134US 4,505,017 ACombustion Engineering, Inc. · 1985
- Protective metal oxide films on metal or alloy substrate surfaces susceptible to coking, corrosion or catalytic activity105US 4,297,150 AThe British Petroleum Company p.l.c. · 1981
- Self-cleaning surfaces of objects and process for producing same100US 6,660,363 B12003
- Gas phase chemical reactor93US 4,816,121 A1989
- Treatment of heat exchangers to reduce corrosion and by-product reactions83US 5,141,049 AThe Badger Company, Inc. · 1992