C09K 5/00
Heat-transfer, heat-exchange or heat-storage materials
Official title: Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
C09K5/00 (Heat-transfer, heat-exchange or heat-storage materials) appears on 5,212 US grants and 6,528 published applications in this corpus.
Search patents in C09K- Granted patents
- 5,212
- Published applications
- 6,528
- Assignees
- 2,195
- Inventors
- 11,082
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 37 | 0 |
| 1977 | 30 | 0 |
| 1978 | 24 | 0 |
| 1979 | 16 | 0 |
| 1980 | 34 | 0 |
| 1981 | 38 | 0 |
| 1982 | 33 | 0 |
| 1983 | 34 | 0 |
| 1984 | 61 | 0 |
| 1985 | 47 | 0 |
| 1986 | 43 | 0 |
| 1987 | 47 | 0 |
| 1988 | 39 | 0 |
| 1989 | 26 | 0 |
| 1990 | 42 | 0 |
| 1991 | 66 | 0 |
| 1992 | 43 | 0 |
| 1993 | 62 | 0 |
| 1994 | 49 | 0 |
| 1995 | 70 | 0 |
| 1996 | 58 | 0 |
| 1997 | 65 | 0 |
| 1998 | 114 | 0 |
| 1999 | 71 | 0 |
| 2000 | 91 | 0 |
| 2001 | 110 | 25 |
| 2002 | 96 | 103 |
| 2003 | 103 | 113 |
| 2004 | 74 | 131 |
| 2005 | 67 | 140 |
| 2006 | 57 | 117 |
| 2007 | 61 | 165 |
| 2008 | 70 | 151 |
| 2009 | 64 | 154 |
| 2010 | 82 | 171 |
| 2011 | 118 | 210 |
| 2012 | 84 | 219 |
| 2013 | 114 | 229 |
| 2014 | 129 | 243 |
| 2015 | 171 | 342 |
| 2016 | 197 | 366 |
| 2017 | 244 | 378 |
| 2018 | 281 | 370 |
| 2019 | 292 | 384 |
| 2020 | 283 | 423 |
| 2021 | 242 | 388 |
| 2022 | 242 | 391 |
| 2023 | 216 | 353 |
| 2024 | 180 | 349 |
| 2025 | 211 | 320 |
| 2026 | 184 | 293 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Chlorinated fluoroaromatics and methods of using same6 Oct 2026US 12,753,140 B23M Innovative Properties Company
- Polymer and thermal interface material6 Oct 2026US 12,753,335 B2Industrial Technology Research Institute
- Heat exchanger6 Oct 2026US 12,753,336 B2Daikin Industries, Ltd.
- Method of encapsulating a phase change material6 Oct 2026US 12,753,601 B2UT-Battelle, LLC
- Granulated particle for cold storage material particle, cold storage material particle, cold storage device, refrigerator, cryopump superconducting magnet, nuclear magnetic resonance imaging apparatus, nuclear magnetic resonance apparatus, magnetic field application type single crystal pulling apparatus, and helium re-condensing device29 Sep 2026US 12,747,380 B2Niterra Materials Co., Ltd.
- Compositions8 Oct 2026US 2026/0308433 A1
- Hfo-1234ze, hfo-1225zc and hfo-1234yf containing compositions and processes for producing and using the compositions8 Oct 2026US 2026/0308434 A1The Chemours Company Fc, LLC
- Thermally conductive member, thermally conductive composition, structure, and method for reworking structure8 Oct 2026US 2026/0308435 A1Sekisui Chemical Co., Ltd.
- Propylene Carbonate Based Heat Transfer Fluid8 Oct 2026US 2026/0308436 A1CCI North America Corporation
- Heat Transfer Fluids for Electric Vehicles8 Oct 2026US 2026/0308437 A1Prestone Products Corporation
Most cited
By later US patents
- Hybrid nanoparticles300US 7,919,184 B22011
- Chemical heat source for use in smoking articles254US 7,290,549 B2R. J. Reynolds Tobacco Company · 2007
- Phase change material thermal capacitor clothing196US 6,855,410 B22005
- Phase change thermal control materials, method and apparatus174US 5,722,482 A1998
- Refrigeration lubricants168US 4,755,316 AAllied-Signal Inc. · 1988