A61F 2007/0292
Using latent heat produced or absorbed during phase change of materials
Official title: {using latent heat produced or absorbed during phase change of materials, e.g. of super-cooled solutions}
A61F2007/0292 (Using latent heat produced or absorbed during phase change of materials) appears on 227 US grants and 284 published applications in this corpus.
Search patents in A61F- Granted patents
- 227
- Published applications
- 284
- Assignees
- 161
- Inventors
- 538
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 9 | 0 |
| 1999 | 10 | 0 |
| 2000 | 8 | 0 |
| 2001 | 14 | 3 |
| 2002 | 5 | 6 |
| 2003 | 10 | 11 |
| 2004 | 4 | 20 |
| 2005 | 8 | 14 |
| 2006 | 7 | 7 |
| 2007 | 5 | 13 |
| 2008 | 6 | 9 |
| 2009 | 2 | 14 |
| 2010 | 5 | 4 |
| 2011 | 3 | 9 |
| 2012 | 5 | 9 |
| 2013 | 5 | 18 |
| 2014 | 4 | 12 |
| 2015 | 6 | 15 |
| 2016 | 6 | 18 |
| 2017 | 12 | 15 |
| 2018 | 5 | 13 |
| 2019 | 6 | 19 |
| 2020 | 10 | 13 |
| 2021 | 7 | 17 |
| 2022 | 5 | 4 |
| 2023 | 8 | 4 |
| 2024 | 7 | 6 |
| 2025 | 2 | 7 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Head cooling device2 Jun 2026US 12,642,694 B2Mpacplus Co., Ltd.
- Handheld palm cooling device24 Mar 2026US 12,582,547 B2Apex Cool Labs, Inc.
- Refrigerable hanging ice neck collar10 Mar 2026US 12,571,407 B1Shenzhen Keeway Technology Co., Ltd.
- Dry eye treatment apparatus and methods24 Jun 2025US 12,336,930 B2Sight Sciences, Inc.
- Fertility-enhancing cooling seat29 Apr 2025US 12,285,354 B2
- Novel oral cooling device27 Aug 2026US 2026/0248644 A1Sitisolv AB
- Handheld Palm Cooling Device2 Jul 2026US 2026/0183143 A1Apex Cool Labs, Inc.
- Controlled exothermic heat pack25 Jun 2026US 2026/0174593 A1
- Wearable Temperature-Reducing Device22 Jan 2026US 2026/0020981 A1Jiangsu Huanyi Industrial Co., Ltd.
- Perineal warm compress devices, methods and systems16 Oct 2025US 2025/0318952 A1Fruits of Labor Inc.
Most cited
By later US patents
- Orthopedic device having gel pad with phase change material298US 4,964,402 ARoyce Medical Company · 1990
- Method and apparatus for controlling the temperature of a surface259US 6,648,904 B2Palomar Medical Technologies, Inc. · 2003
- Phase change material thermal capacitor clothing196US 6,855,410 B22005
- Phase change thermal control materials, method and apparatus174US 5,722,482 A1998
- Phase change thermal control materials, method and apparatus140US 6,319,599 B12001