A61H 33/00
Bathing devices for special therapeutic or hygienic purposes
Official title: Bathing devices for special therapeutic or hygienic purposes (A61H35/00 takes precedence; {sprays acting on a body or body part not immersed in water A61H9/00; means for washing bed-ridden persons A61G7/0005;} for sub aquatic intestinal cleaning A61M9/00; {isolation chambers A61M21/0094; } electric or magnetic baths, applying ionised fluids A61N1/44 {; heater for bath tubs F24H1/54})
A61H33/00 (Bathing devices for special therapeutic or hygienic purposes) appears on 2,091 US grants and 2,094 published applications in this corpus.
Search patents in A61H- Granted patents
- 2,091
- Published applications
- 2,094
- Assignees
- 796
- Inventors
- 3,062
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 15 | 0 |
| 1978 | 17 | 0 |
| 1979 | 12 | 0 |
| 1980 | 21 | 0 |
| 1981 | 19 | 0 |
| 1982 | 15 | 0 |
| 1983 | 18 | 0 |
| 1984 | 15 | 0 |
| 1985 | 24 | 0 |
| 1986 | 24 | 0 |
| 1987 | 15 | 0 |
| 1988 | 30 | 0 |
| 1989 | 37 | 0 |
| 1990 | 40 | 0 |
| 1991 | 42 | 0 |
| 1992 | 33 | 0 |
| 1993 | 32 | 0 |
| 1994 | 28 | 0 |
| 1995 | 31 | 0 |
| 1996 | 21 | 0 |
| 1997 | 21 | 0 |
| 1998 | 41 | 0 |
| 1999 | 46 | 0 |
| 2000 | 37 | 0 |
| 2001 | 54 | 15 |
| 2002 | 55 | 49 |
| 2003 | 58 | 61 |
| 2004 | 48 | 90 |
| 2005 | 46 | 105 |
| 2006 | 51 | 97 |
| 2007 | 28 | 91 |
| 2008 | 30 | 85 |
| 2009 | 26 | 89 |
| 2010 | 39 | 67 |
| 2011 | 39 | 77 |
| 2012 | 58 | 83 |
| 2013 | 52 | 69 |
| 2014 | 60 | 74 |
| 2015 | 64 | 75 |
| 2016 | 50 | 76 |
| 2017 | 64 | 105 |
| 2018 | 57 | 70 |
| 2019 | 88 | 98 |
| 2020 | 72 | 91 |
| 2021 | 74 | 95 |
| 2022 | 67 | 79 |
| 2023 | 69 | 102 |
| 2024 | 69 | 103 |
| 2025 | 81 | 92 |
| 2026 | 43 | 56 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61H 33/60Components specifically designed for the therapeutic baths of groups a61h33/001,184
- A61H 33/02Bathing devices for use with gas-containing liquid, or liquid in which gas643
- A61H 33/0087Therapeutic baths with agitated or circulated water490
- A61H 33/06Artificial hot-air or cold-air baths402
- A61H 33/005Electrical circuits therefor357
- A61H 33/14Devices for gas baths with ozone, hydrogen, or the like217
- A61H 33/0095Arrangements for varying the temperature of the liquid161
- A61H 2033/0008Arrangement for cleaning the installation before or after useIndexing code115
All 13 subgroupsShow fewer
- A61H 33/04Appliances for sand, mud , wax or foam baths85
- A61H 2033/0037Arrangement for cleaning the fluid during useIndexing code79
- A61H 2033/0004Bathing devices specially adapted for treating burned patientsIndexing code8
- A61H 2033/0041Cleaning and recovery of the fluid without mixing the cleaned and uncleanedIndexing code6
- A61H 2033/0045Bathing devices for special therapeutic or hygienic purposes: with heat-recovery of wasteIndexing code1
Recent patents
- Massage nozzle for hot tub6 Oct 2026US 12,751,896 B2Guangzhou Rising Dragon Recreation Industrial Co., Ltd.
- Systems and methods for controlling a sauna29 Sep 2026US 12,746,179 B2High Tech Health International, Inc.
- Long foldable ice bath29 Sep 2026US 12,746,180 B2Bjorn Capital Group LLC
- Sauna with galvanically isolated electrical fault detection and analytics22 Sep 2026US 12,742,800 B2Sunlighten, Inc.
- Sauna device holder15 Sep 2026US 12,734,109 B2High Tech Health International, Inc.
- 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
- Monitoring and controlling connected pool devices24 Sep 2026US 2026/0286736 A1Pentair Water Pool and Spa, Inc.
- A spa air pump with inflating function and a spa swimming pool10 Sep 2026US 2026/0263320 A1Intex Marketing Ltd.
- A nozzle assembly for a spa pool and a spa pool27 Aug 2026US 2026/0248684 A1Intex Marketing Ltd.
- Inductive charging system27 Aug 2026US 2026/0254273 A1Sundance Spas, Inc.
Most cited
By later US patents
- Medicated vapor production method and apparatus237US 3,949,743 ASchick Incorporated · 1976
- Portable thermo-hydraulic physiotherapy device219US 4,149,529 AJobst Institute, Inc. · 1979
- Lavage tip196US 5,735,833 ABristol-Myers Squibb Company · 1998
- Hyperbaric gas treatment device194US 4,624,656 AHospitak, Inc. · 1986
- Spa control system163US 5,361,215 ASiege Industries, Inc. · 1994