A61H 2201/0221
Mechanism for heating or cooling
A61H2201/0221 (Mechanism for heating or cooling) appears on 914 US grants and 1,446 published applications in this corpus.
Search patents in A61H- Granted patents
- 914
- Published applications
- 1,446
- Assignees
- 594
- Inventors
- 2,242
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 6 | 0 |
| 1980 | 8 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 6 | 0 |
| 1985 | 4 | 0 |
| 1986 | 6 | 0 |
| 1987 | 8 | 0 |
| 1988 | 1 | 0 |
| 1989 | 9 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 7 | 0 |
| 2000 | 10 | 0 |
| 2001 | 6 | 4 |
| 2002 | 6 | 12 |
| 2003 | 10 | 14 |
| 2004 | 12 | 26 |
| 2005 | 11 | 31 |
| 2006 | 13 | 27 |
| 2007 | 12 | 42 |
| 2008 | 9 | 37 |
| 2009 | 7 | 30 |
| 2010 | 14 | 29 |
| 2011 | 18 | 39 |
| 2012 | 17 | 39 |
| 2013 | 28 | 69 |
| 2014 | 19 | 65 |
| 2015 | 23 | 64 |
| 2016 | 30 | 107 |
| 2017 | 52 | 99 |
| 2018 | 47 | 72 |
| 2019 | 71 | 90 |
| 2020 | 65 | 100 |
| 2021 | 53 | 90 |
| 2022 | 54 | 83 |
| 2023 | 61 | 94 |
| 2024 | 66 | 65 |
| 2025 | 47 | 69 |
| 2026 | 24 | 49 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61H 2201/0228Heated by an electric resistance elementIndexing code406
- A61H 2201/0242By a fluid circulating in the apparatusIndexing code259
- A61H 2201/025By direct air flow on the patient's bodyIndexing code184
- A61H 2201/0257By a heat accumulatorIndexing code177
- A61H 2201/0285With peltier elementsIndexing code100
- A61H 2201/0278By chemical reactionIndexing code63
- A61H 2201/0292With microwavesIndexing code57
- A61H 2201/0264Using heat exchangerIndexing code47
Recent patents
- Systems and methods for controlling a sauna29 Sep 2026US 12,746,179 B2High Tech Health International, Inc.
- Negative pressure massage structure and massage device for sexual stimulation15 Sep 2026US 12,734,101 B1Shenzhen Aikesaite Technology Co., Ltd.
- Massage apparatus including oscillators8 Sep 2026US 12,728,067 B2Ceragem Co., Ltd.
- Intermetatarsal space vibrator1 Sep 2026US 12,721,773 B2
- Sexual stimulation device1 Sep 2026US 12,721,780 B1Dongguan Yanshi Electronic Technology Co., Ltd.
- External cold-and-hot switching fascia gun8 Oct 2026US 2026/0306351 A1Dongguan Shi Fule Technology Limited
- Hand held cooling device8 Oct 2026US 2026/0306355 A1DD Karma LLC d/b/a Dermaflash
- Integrated Cold Plunge Therapy System with Hydro-Circulation, Ice- Forming Cooling, Multi-Wavelength Light Therapy, Sound Therapy, and Mobility Enhancement24 Sep 2026US 2026/0283839 A1
- Foot massager24 Sep 2026US 2026/0283894 A1Reestar International Limited
- Massage mechanism with adjustment function and massager17 Sep 2026US 2026/0272759 A1Xiamen Xuemi Technology Co., Ltd.
Most cited
By later US patents
- Heated traction belt1,022US 4,643,173 A1987
- Portable thermo-hydraulic physiotherapy device219US 4,149,529 AJobst Institute, Inc. · 1979
- Inflatable supports218US 4,225,989 AGlynwed Group Services Limited · 1980
- Vaginal probe and method208US 6,741,895 B1Medoc Ltd. · 2004
- Compression sleeve160US 4,091,804 AThe Kendall Company · 1978