A61H 2201/0235
Thermistors with positive temperature coefficient [ptc]
Official title: Thermistors with Positive Temperature Coefficient [PTC]
A61H2201/0235 (Thermistors with positive temperature coefficient [ptc]) appears on 23 US grants and 40 published applications in this corpus.
Search patents in A61H- Granted patents
- 23
- Published applications
- 40
- Assignees
- 23
- Inventors
- 78
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 4 |
| 2014 | 0 | 1 |
| 2015 | 0 | 3 |
| 2016 | 1 | 3 |
| 2017 | 2 | 3 |
| 2018 | 3 | 5 |
| 2019 | 2 | 2 |
| 2020 | 2 | 3 |
| 2021 | 1 | 1 |
| 2022 | 1 | 6 |
| 2023 | 2 | 2 |
| 2024 | 4 | 3 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Control box of massage pool and massage pool7 Oct 2025US 12,433,822 B2Bestway Inflatables & Material Corp.
- Percussion massager having a temperature-controlled massage node8 Oct 2024US 12,109,165 B2MerchSource, LLC
- Temperature-controlled massage node light indicator1 Oct 2024US 12,102,583 B2MerchSource, LLC
- Cervical traction pillow16 Jul 2024US 12,036,170 B2
- Thermotherapy device and control method therefor6 Feb 2024US 11,890,248 B2Ceragem Co., Ltd.
- Cold and hot plunge shower management systems2 Apr 2026US 2026/0090944 A1
- Cervical traction pillow20 Jun 2024US 2024/0197553 A1Pleson (Hk) Technology Limited
- Thermo-therapeutic apparatus and method for controlling the same4 Apr 2024US 2024/0108536 A1Ceragem Co., Ltd.
- Thermotherapy device11 Jan 2024US 2024/0009071 A1Ceragem Co., Ltd.
- Massage module having heating function5 Oct 2023US 2023/0310258 A1Bodyfriend Co., Ltd.
Most cited
By later US patents
- Vibratory massage device43US 4,604,993 AMatsushita Electric Works, Ltd. · 1986
- Apparatus for examining and curing urinary incontinence, and for exercising bio-feedback of women vagina muscles38US 8,360,954 B2Apimeds, Inc. · 2013
- Message bead with heat application effect32US 6,511,446 B12003
- Apparatus for foot therapy14US 6,805,678 B2Helen of Troy Limited · 2004
- Vibration and heat generation apparatus for use with compression wrap12US 10,524,978 B2Hyper Ice, Inc. · 2020