F28D 2021/0019
Heat-exchange apparatus not covered by any of the groups f28d1/00 - f28d20/00
Official title: {Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for}
F28D2021/0019 (Heat-exchange apparatus not covered by any of the groups f28d1/00 - f28d20/00) appears on 5,961 US grants and 7,916 published applications in this corpus.
Search patents in F28D- Granted patents
- 5,961
- Published applications
- 7,916
- Assignees
- 2,633
- Inventors
- 14,545
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 16 | 0 |
| 1978 | 15 | 0 |
| 1979 | 13 | 0 |
| 1980 | 20 | 0 |
| 1981 | 30 | 0 |
| 1982 | 20 | 0 |
| 1983 | 16 | 0 |
| 1984 | 26 | 0 |
| 1985 | 31 | 0 |
| 1986 | 19 | 0 |
| 1987 | 29 | 0 |
| 1988 | 27 | 0 |
| 1989 | 18 | 0 |
| 1990 | 21 | 0 |
| 1991 | 27 | 0 |
| 1992 | 44 | 0 |
| 1993 | 48 | 0 |
| 1994 | 41 | 0 |
| 1995 | 34 | 0 |
| 1996 | 42 | 0 |
| 1997 | 27 | 0 |
| 1998 | 54 | 0 |
| 1999 | 45 | 0 |
| 2000 | 58 | 0 |
| 2001 | 71 | 31 |
| 2002 | 71 | 88 |
| 2003 | 87 | 118 |
| 2004 | 85 | 131 |
| 2005 | 90 | 169 |
| 2006 | 110 | 183 |
| 2007 | 92 | 219 |
| 2008 | 53 | 197 |
| 2009 | 58 | 174 |
| 2010 | 88 | 167 |
| 2011 | 100 | 201 |
| 2012 | 98 | 257 |
| 2013 | 111 | 268 |
| 2014 | 129 | 338 |
| 2015 | 154 | 314 |
| 2016 | 188 | 386 |
| 2017 | 267 | 456 |
| 2018 | 324 | 498 |
| 2019 | 446 | 537 |
| 2020 | 415 | 586 |
| 2021 | 425 | 503 |
| 2022 | 420 | 561 |
| 2023 | 376 | 500 |
| 2024 | 414 | 402 |
| 2025 | 372 | 370 |
| 2026 | 181 | 262 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F28D 2021/008For vehiclesIndexing code1,565
- F28D 2021/0028For cooling heat generating elementsIndexing code1,222
- F28D 2021/0068For refrigerant cyclesIndexing code859
- F28D 2021/0021For aircrafts or cosmonauticsIndexing code477
- F28D 2021/0061For phase-change applicationsIndexing code373
- F28D 2021/0026For combustion enginesIndexing code271
- F28D 2021/0022For chemical reactorsIndexing code192
- F28D 2021/0077For temperingIndexing code185
All 25 subgroupsShow fewer
- F28D 2021/0043For fuel cellsIndexing code169
- F28D 2021/0075For syngas or cracked gas cooling systemsIndexing code151
- F28D 2021/0024For combustion apparatusIndexing code147
- F28D 2021/0033For cryogenic applicationsIndexing code140
- F28D 2021/0054For nuclear applicationsIndexing code132
- F28D 2021/0059For petrochemical plantsIndexing code117
- F28D 2021/005For medical applicationsIndexing code107
- F28D 2021/0042For foodstuffsIndexing code84
- F28D 2021/0038For drying or dehumidifying gases or vapoursIndexing code77
- F28D 2021/0049For lubricantsIndexing code72
- F28D 2021/0045For granular materialsIndexing code63
- F28D 2021/0035For domestic or space heatingIndexing code57
- F28D 2021/0052For mixersIndexing code42
- F28D 2021/004For engine or machine cooling systemsIndexing code39
- F28D 2021/0056For ovens or furnacesIndexing code34
- F28D 2021/0098For viscous or semi-liquid materialsIndexing code24
- F28D 2021/0047For hydrogen or other compressed gas storage tanksIndexing code17
Recent patents
- Additively manufactured heat exchanger and diffuser pipe coupled to a compressor stage6 Oct 2026US 12,752,921 B2Hamilton Sundstrand Corporation
- Method, controller and system of controlling thermal power transfer through a thermal energy exchanger6 Oct 2026US 12,753,941 B2Belimo Holding AG
- Cooling module6 Oct 2026US 12,753,974 B2Hanon Systems
- Controllable injection for implementing different local refrigerant distribution6 Oct 2026US 12,753,975 B2Linde Aktiengesellschaft
- Cold plate and method for manufacturing cold plate6 Oct 2026US 12,753,978 B2Fujikura Ltd.
- Falling film evaporator8 Oct 2026US 2026/0309429 A1Bitzer Kuhlmaschinenbau GmbH
- Heat exchanger8 Oct 2026US 2026/0309434 A1
- Radiator-type device with heat pipe for comfortable heating and cooling1 Oct 2026US 2026/0298545 A1Enover Isi Sistemleri Anonim Sirketi
- Oscillating heat pipe with phase change material1 Oct 2026US 2026/0298548 A1Raytheon Company
- Heat exchange mechanism, processing device, and processing machine1 Oct 2026US 2026/0298553 A1Hon. Precision, Inc.
Most cited
By later US patents
- Ergonomic systems and methods providing intelligent adaptive surfaces and temperature control392US 6,230,501 B1ProMXD Technology, Inc. · 2001
- Integrated multilayered microfludic devices and methods for making the same242US 6,572,830 B1Motorola, Inc. · 2003
- Multilayered microfluidic DNA analysis system and method238US 6,544,734 B12003
- Ergonomic systems and methods providing intelligent adaptive surfaces and temperature control226US 6,865,825 B2ProMDX Technology, Inc. · 2005
- Multi-channel optical detection system202US 6,369,893 B1Cepheid · 2002