E04H 4/10
Coverings of flexible material
E04H4/10 (Coverings of flexible material) appears on 482 US grants and 379 published applications in this corpus.
Search patents in E04H- Granted patents
- 482
- Published applications
- 379
- Assignees
- 169
- Inventors
- 723
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 11 | 0 |
| 1978 | 9 | 0 |
| 1979 | 8 | 0 |
| 1980 | 7 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 9 | 0 |
| 1988 | 4 | 0 |
| 1989 | 9 | 0 |
| 1990 | 10 | 0 |
| 1991 | 13 | 0 |
| 1992 | 9 | 0 |
| 1993 | 10 | 0 |
| 1994 | 9 | 0 |
| 1995 | 7 | 0 |
| 1996 | 10 | 0 |
| 1997 | 11 | 0 |
| 1998 | 11 | 0 |
| 1999 | 14 | 0 |
| 2000 | 9 | 0 |
| 2001 | 11 | 6 |
| 2002 | 22 | 17 |
| 2003 | 17 | 15 |
| 2004 | 11 | 15 |
| 2005 | 11 | 23 |
| 2006 | 7 | 15 |
| 2007 | 2 | 13 |
| 2008 | 3 | 11 |
| 2009 | 2 | 10 |
| 2010 | 5 | 15 |
| 2011 | 6 | 13 |
| 2012 | 7 | 15 |
| 2013 | 10 | 12 |
| 2014 | 10 | 14 |
| 2015 | 6 | 20 |
| 2016 | 18 | 8 |
| 2017 | 13 | 20 |
| 2018 | 10 | 13 |
| 2019 | 18 | 24 |
| 2020 | 10 | 9 |
| 2021 | 17 | 13 |
| 2022 | 10 | 13 |
| 2023 | 10 | 20 |
| 2024 | 13 | 23 |
| 2025 | 22 | 11 |
| 2026 | 8 | 11 |
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.
- Ripstop material and pool cover28 Jul 2026US 12,692,632 B2Lumite, Inc.
- Swimming pool cover9 Jun 2026US 12,650,024 B1
- Swimming pool cover2 Jun 2026US 12,644,298 B1
- Slip-resistant buckle for safety swimming pool cover straps12 May 2026US 12,622,492 B2Pool Cover Corporation
- Non-conducting leading edge bar8 Oct 2026US 2026/0308930 A1Latham Pool Products, Inc.
- 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.
- Swimming pool cover27 Aug 2026US 2026/0250974 A1
Most cited
By later US patents
- 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
- Multipurpose collapsible panels87US 6,192,635 B1Patent Category Corp. · 2001
- Closure assembly for structural members51US 5,163,495 A1992
- Collapsible dome for pools51US 6,272,695 B12001