E04H 4/06
Safety devices
Official title: Safety devices; Coverings for baths
E04H4/06 (Safety devices) appears on 938 US grants and 796 published applications in this corpus.
Search patents in E04H- Granted patents
- 938
- Published applications
- 796
- Assignees
- 315
- Inventors
- 1,356
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 12 | 0 |
| 1978 | 14 | 0 |
| 1979 | 12 | 0 |
| 1980 | 14 | 0 |
| 1981 | 9 | 0 |
| 1982 | 7 | 0 |
| 1983 | 10 | 0 |
| 1984 | 11 | 0 |
| 1985 | 1 | 0 |
| 1986 | 10 | 0 |
| 1987 | 9 | 0 |
| 1988 | 10 | 0 |
| 1989 | 15 | 0 |
| 1990 | 13 | 0 |
| 1991 | 19 | 0 |
| 1992 | 18 | 0 |
| 1993 | 14 | 0 |
| 1994 | 12 | 0 |
| 1995 | 15 | 0 |
| 1996 | 19 | 0 |
| 1997 | 20 | 0 |
| 1998 | 21 | 0 |
| 1999 | 28 | 0 |
| 2000 | 16 | 0 |
| 2001 | 22 | 8 |
| 2002 | 31 | 24 |
| 2003 | 27 | 21 |
| 2004 | 18 | 28 |
| 2005 | 19 | 42 |
| 2006 | 16 | 31 |
| 2007 | 10 | 40 |
| 2008 | 11 | 27 |
| 2009 | 15 | 30 |
| 2010 | 12 | 34 |
| 2011 | 13 | 25 |
| 2012 | 16 | 28 |
| 2013 | 19 | 27 |
| 2014 | 16 | 34 |
| 2015 | 19 | 38 |
| 2016 | 30 | 28 |
| 2017 | 35 | 39 |
| 2018 | 25 | 31 |
| 2019 | 36 | 36 |
| 2020 | 33 | 34 |
| 2021 | 37 | 28 |
| 2022 | 23 | 34 |
| 2023 | 29 | 38 |
| 2024 | 33 | 44 |
| 2025 | 37 | 27 |
| 2026 | 14 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Inflatable pool having thermal insulation structure22 Sep 2026US 12,742,335 B2Bestway Inflatables & Material Corp.
- Spa cover lift system18 Aug 2026US 12,709,909 B2Strong Industries, Inc.
- Ripstop material and pool cover28 Jul 2026US 12,692,632 B2Lumite, Inc.
- System and method of solar harvesting for aquatic devices7 Jul 2026US 12,674,336 B2Pentair Water Pool and Spa, Inc.
- Security ladder for a pool16 Jun 2026US 12,655,686 B2Bestway Inflatables & Material Corp.
- Non-conducting leading edge bar8 Oct 2026US 2026/0308930 A1Latham Pool Products, Inc.
- Automatic Rescue System for Swimming Pools17 Sep 2026US 2026/0274385 A1
- Swimming pool cover17 Sep 2026US 2026/0275739 A1
- Low Offset Drive Motor Assembly for a Pool Cover17 Sep 2026US 2026/0275740 A1North Star Technology Limited
- Modular inflatable spa cover3 Sep 2026US 2026/0258667 A1AirCap Technologies Inc.
Most cited
By later US patents
- Pool solar power generator616US 9,847,749 B2Masimo Semiconductor, Inc. · 2017
- Lightweight insulated spa cover and method therefor192US 6,618,868 B22003
- Swimming pool cover assembly130US 4,790,037 AAir-Lok Pool Covers, Inc. · 1988
- Leading edge and track slider system for an automatic swimming pool cover112US 4,939,798 A1990
- Roll-up surface, system and method100US 7,090,430 B1Ground Floor Systems, LLC · 2006