E04G 11/082
Retractable forms for the inside face of at least three walls
Official title: {Retractable forms for the inside face of at least three walls (for rooms as a whole E04G11/02)}
E04G11/082 (Retractable forms for the inside face of at least three walls) appears on 25 US grants and 11 published applications in this corpus.
Search patents in E04G- Granted patents
- 25
- Published applications
- 11
- Assignees
- 12
- Inventors
- 27
- Latest grant
- 5 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 2 | 0 |
| 2021 | 1 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 4 |
| 2024 | 1 | 0 |
| 2025 | 4 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Two-way retractable building formwork apparatus5 Aug 2025US 12,378,784 B2
- One-way retractable building formwork apparatus29 Jul 2025US 12,371,914 B2
- Formwork22 Jul 2025US 12,365,112 B2Umdasch Group Newcon GmbH
- Compactible inner form assembly for forming concrete building shafts13 May 2025US 12,297,653 B2Seamill Aus Pty Ltd
- Formwork core for a formwork system for casting a bell-shaped body10 Dec 2024US 12,163,342 B2Ratec Maschinenentwicklungs - und Verwaltungs-GmbH
- A compactible inner form assembly for forming concrete building shafts28 Sep 2023US 2023/0304310 A1Seamill Aus Pty Ltd
- One-way retractable building formwork apparatus24 Aug 2023US 2023/0265667 A1
- Two-way retractable building formwork apparatus24 Aug 2023US 2023/0265668 A1
- Formwork12 Jan 2023US 2023/0009236 A1Umdasch Group Newcon GmbH
- Formwork core for a formwork system for casting a bell-shaped body5 Aug 2021US 2021/0238870 A1Ratec Maschinenentwicklungs - und Verwaltungs-GmbH
Most cited
By later US patents
- Inside concrete corewall form with particular three-way hinge assemblies therefor17US 4,055,321 ASymons Corporation · 1977
- Slide action inside corner form17US 4,570,896 AStrickland Systems, Inc. · 1986
- Joining concrete form panels to cast an inside corner wall structure15US 4,447,035 AStrickland Systems, Inc. · 1984
- Concrete core-wall form and stripping assembly therefor13US 4,520,988 AHarsco Corporation · 1985
- Inside corner concrete form unit12US 4,519,570 AStrickland Systems, Inc. · 1985