E04H 4/144
Means for facilitating access
Official title: {Means for facilitating access, e.g. step units or slides (invalid-lifting devices for swimming pools A61G7/1005)}
E04H4/144 (Means for facilitating access) appears on 218 US grants and 185 published applications in this corpus.
Search patents in E04H- Granted patents
- 218
- Published applications
- 185
- Assignees
- 89
- Inventors
- 295
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 1 |
| 2003 | 5 | 8 |
| 2004 | 8 | 4 |
| 2005 | 5 | 6 |
| 2006 | 6 | 6 |
| 2007 | 1 | 5 |
| 2008 | 0 | 5 |
| 2009 | 2 | 4 |
| 2010 | 2 | 3 |
| 2011 | 1 | 7 |
| 2012 | 6 | 6 |
| 2013 | 4 | 8 |
| 2014 | 3 | 8 |
| 2015 | 7 | 9 |
| 2016 | 6 | 8 |
| 2017 | 2 | 7 |
| 2018 | 6 | 9 |
| 2019 | 17 | 16 |
| 2020 | 7 | 12 |
| 2021 | 13 | 8 |
| 2022 | 7 | 11 |
| 2023 | 12 | 11 |
| 2024 | 8 | 8 |
| 2025 | 7 | 9 |
| 2026 | 6 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Plunge pool25 Aug 2026US 12,716,254 B2Plungie IP Pty Ltd
- Steps for a spa14 Jul 2026US 12,680,326 B2Bullfrog International, LC
- Security ladder for a pool16 Jun 2026US 12,655,686 B2Bestway Inflatables & Material Corp.
- Device and method for transferring handicapped or disabled persons into or out of a swimming pool28 Apr 2026US 12,612,796 B2
- Slide3 Feb 2026US 12,540,482 B2Splinter Works Limited
- Modular ladder with a tambour barrier10 Sep 2026US 2026/0266078 A1Confer Plastics, Inc.
- Automatically retractable marine ladder3 Sep 2026US 2026/0258703 A1
- Anchor system20 Aug 2026US 2026/0243099 A1Wood's Pool Service
- Pool ladder anchor bracket16 Jul 2026US 2026/0202005 A1
- Modular ladder with a tambour barrier18 Jun 2026US 2026/0168326 A1Confer Plastics, Inc.
Most cited
By later US patents