E04C 2/543
Hollow multi-walled panels with integrated webs
Official title: {Hollow multi-walled panels with integrated webs}
E04C2/543 (Hollow multi-walled panels with integrated webs) appears on 111 US grants and 100 published applications in this corpus.
Search patents in E04C- Granted patents
- 111
- Published applications
- 100
- Assignees
- 64
- Inventors
- 185
- Latest grant
- 2 Aug 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 3 |
| 2002 | 4 | 2 |
| 2003 | 2 | 4 |
| 2004 | 5 | 17 |
| 2005 | 8 | 4 |
| 2006 | 7 | 7 |
| 2007 | 2 | 9 |
| 2008 | 2 | 3 |
| 2009 | 4 | 6 |
| 2010 | 2 | 10 |
| 2011 | 5 | 3 |
| 2012 | 4 | 6 |
| 2013 | 3 | 5 |
| 2014 | 3 | 2 |
| 2015 | 2 | 3 |
| 2016 | 2 | 4 |
| 2017 | 2 | 1 |
| 2018 | 4 | 2 |
| 2019 | 1 | 3 |
| 2020 | 3 | 3 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for making a composite panel, preferably cementitious mortar based, with light translucency properties2 Aug 2022US 11,400,618 B2Gesteco S.p.A.
- Multiwall sheet and methods of using the same22 Jun 2021US 11,041,307 B2Sabic Global Technologies B.V.
- Modular floor platform25 Aug 2020US 10,753,086 B2World Housing Solution
- Component made of hollow glass blocks5 May 2020US 10,640,976 B2
- Light transmitting plastic panel providing variable daylight10 Mar 2020US 10,584,490 B2
- Fenestration panels and systems11 Dec 2025US 2025/0376890 A1VKR Holding A/S
- Glazing5 Jun 2025US 2025/0179866 A1
- Flexible insulating sheet25 Feb 2021US 2021/0054627 A1
- Modular Floor Platform5 Nov 2020US 2020/0347593 A1World Housing Solution
- Method for making a composite panel, preferably cementitious mortar based, with light transluceny properties25 Jun 2020US 2020/0199873 A1Gesteco S.p.A.
Most cited
By later US patents
- Box formed building panel of extruded plastic397US 4,299,070 A1981
- Extruded structural system224US 4,557,091 ACorflex International, Inc. · 1985
- Constructional panels208US 5,050,362 APolygal · 1991
- Light-transmitting wall panels123US 4,998,395 A1991
- Method for making hollow multilayer multiple-wall synthetic resin panels76US 4,707,393 ARohm Co., Ltd. · 1987