A61H 33/6073
Intake mouths for recirculation of fluid in whirlpool baths
Official title: {Intake mouths for recirculation of fluid in whirlpool baths}
A61H33/6073 (Intake mouths for recirculation of fluid in whirlpool baths) appears on 109 US grants and 62 published applications in this corpus.
Search patents in A61H- Granted patents
- 109
- Published applications
- 62
- Assignees
- 61
- Inventors
- 176
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 4 | 3 |
| 2002 | 4 | 0 |
| 2003 | 4 | 3 |
| 2004 | 5 | 8 |
| 2005 | 4 | 10 |
| 2006 | 2 | 8 |
| 2007 | 2 | 2 |
| 2008 | 2 | 4 |
| 2009 | 1 | 5 |
| 2010 | 2 | 3 |
| 2011 | 0 | 2 |
| 2012 | 3 | 1 |
| 2013 | 2 | 1 |
| 2014 | 1 | 1 |
| 2015 | 4 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 2 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 2 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Swim spa jet propulsion systems and methods28 Apr 2026US 12,611,583 B2Bullfrog International, LC
- Spa having drain system for improved water circulation30 Dec 2025US 12,509,896 B2Strong Industries, Inc.
- System and method for sealing components in a spa shell25 Feb 2025US 12,233,021 B2Bullfrog International, LC
- Whirlpool bath controller with intelligent load control to reduce power requirements6 Dec 2022US 11,522,326 B2Balboa Water Group, Inc.
- Tub with swirl ports and dispenser4 May 2021US 10,993,875 B2Jacuzzi Inc.
- Therapeutic Spa Bath for Providing Hydrotherapy Treatments30 Apr 2026US 2026/0115098 A1
- Swim spa jet propulsion systems and methods20 Mar 2025US 2025/0090924 A1Bullfrog International, LC
- Spa having drain system for improved water circulation16 May 2024US 2024/0159069 A1Strong Industries, Inc.
- System and method for sealing components in a spa shell20 Jul 2023US 2023/0225937 A1Bullfrog International, LC
- Whirlpool bath controller with intelligent load control to reduce power requirements29 Jul 2021US 2021/0234320 A1Balboa Water Group, Inc.
Most cited
By later US patents
- Modular integrated multifunction pool safety controller (MIMPSC)161US 6,676,831 B22004
- Integral light and liquid circulation fitting156US 5,207,499 AKDI American Products, Inc. · 1993
- Suction fitting with pump control device135US 5,167,041 AKDI American Products, Inc. · 1992
- Spa construction and isolated controls therefor117US 4,233,694 AJacuzzi Whirlpool Bath, Inc. · 1980
- Vacuum relief device for fluid transfer and circulation systems110US 6,468,052 B22002