E04H 4/00
Swimming or splash baths or pools
E04H4/00 (Swimming or splash baths or pools) appears on 4,934 US grants and 4,483 published applications in this corpus.
Search patents in E04H- Granted patents
- 4,934
- Published applications
- 4,483
- Assignees
- 1,350
- Inventors
- 5,877
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 64 | 0 |
| 1977 | 57 | 0 |
| 1978 | 59 | 0 |
| 1979 | 46 | 0 |
| 1980 | 57 | 0 |
| 1981 | 39 | 0 |
| 1982 | 37 | 0 |
| 1983 | 43 | 0 |
| 1984 | 48 | 0 |
| 1985 | 45 | 0 |
| 1986 | 49 | 0 |
| 1987 | 58 | 0 |
| 1988 | 71 | 0 |
| 1989 | 77 | 0 |
| 1990 | 70 | 0 |
| 1991 | 65 | 0 |
| 1992 | 73 | 0 |
| 1993 | 61 | 0 |
| 1994 | 63 | 0 |
| 1995 | 69 | 0 |
| 1996 | 63 | 0 |
| 1997 | 68 | 0 |
| 1998 | 89 | 0 |
| 1999 | 113 | 0 |
| 2000 | 89 | 0 |
| 2001 | 98 | 21 |
| 2002 | 105 | 83 |
| 2003 | 96 | 101 |
| 2004 | 79 | 144 |
| 2005 | 83 | 146 |
| 2006 | 83 | 147 |
| 2007 | 66 | 143 |
| 2008 | 57 | 140 |
| 2009 | 68 | 125 |
| 2010 | 71 | 125 |
| 2011 | 79 | 147 |
| 2012 | 93 | 132 |
| 2013 | 108 | 154 |
| 2014 | 97 | 188 |
| 2015 | 124 | 190 |
| 2016 | 138 | 162 |
| 2017 | 165 | 233 |
| 2018 | 211 | 216 |
| 2019 | 238 | 219 |
| 2020 | 202 | 215 |
| 2021 | 194 | 207 |
| 2022 | 169 | 220 |
| 2023 | 195 | 227 |
| 2024 | 171 | 279 |
| 2025 | 214 | 277 |
| 2026 | 157 | 242 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E04H 4/14Parts, details or accessories not otherwise provided for2,391
- E04H 4/12Devices or arrangements for circulating water , i.e. devices for removal of1,595
- E04H 4/06Safety devices938
- E04H 4/0018Easily movable or transportable swimming pools479
- E04H 4/0006Devices for producing waves in swimming pools255
- E04H 4/0075Made of concrete124
- E04H 4/0012Floating swimming pools23
Recent patents
- Pool skimmer6 Oct 2026US 12,753,619 B1Sichuan Cootway Technology Co., Ltd.
- Pool robot6 Oct 2026US 12,753,620 B2Xingmai Innovation Technology (Suzhou) Co., Ltd.
- Pool cleaning robot water temperature estimation6 Oct 2026US 12,754,079 B2Maytronics Ltd.
- Concepts and methods for pool system communication between connectable devices6 Oct 2026US 12,756,995 B2Fluidra Group Australia Pty Ltd.
- Pool wave generator29 Sep 2026US 12,747,599 B2Whitewater West Industries Ltd.
- Non-conducting leading edge bar8 Oct 2026US 2026/0308930 A1Latham Pool Products, Inc.
- Underwater robot drive structure and underwater robot8 Oct 2026US 2026/0308931 A1Seauto (Guangdong Hengqin) Technology Co., Ltd.
- Variable speed pumping system and method8 Oct 2026US 2026/0309157 A1Pentair Water Pool and Spa, Inc.
- Method for controlling pool robot to operate, electronic device, and storage medium8 Oct 2026US 2026/0310198 A1Xingmai Innovation Technology (Suzhou) Co., Ltd.
- Method, system, and medium for cleaning a swimming pool wall8 Oct 2026US 2026/0310222 A1Seauto (Guangdong Hengqin) Technology Co., Ltd.
Most cited
By later US patents
- Pool solar power generator616US 9,847,749 B2Masimo Semiconductor, Inc. · 2017
- Self-powered pool vacuum with remote controlled capabilities278US 5,454,129 A1995
- Lightweight insulated spa cover and method therefor192US 6,618,868 B22003
- Methods and apparatus for illumination of liquids177US 7,187,141 B2Color Kinetics Incorporated · 2007
- Boat activated wake enhancement method and system176US 6,105,527 ALight Wave, Ltd. · 2000