E04B 2001/2412
Keyhole connections
Official title: {Keyhole connections}
E04B2001/2412 (Keyhole connections) appears on 17 US grants and 18 published applications in this corpus.
Search patents in E04B- Granted patents
- 17
- Published applications
- 18
- Assignees
- 13
- Inventors
- 38
- Latest grant
- 4 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 3 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 2 |
| 2019 | 0 | 2 |
| 2020 | 1 | 2 |
| 2021 | 2 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Steel beam4 Mar 2025US 12,241,247 B2Peikko Group Oy
- Steel beam and supporting arrangement for supporting a steel beam at a console19 Sep 2023US 11,761,193 B2Peikko Group Oy
- Elongate structural element, a bracket and an elongate structural section7 Sep 2021US 11,111,667 B2Stonelake Pty. Ltd.
- Building systems, panel systems, and formwork systems, panels and formwork for building and methods of building using panels and formwork16 Feb 2021US 10,920,415 B2Fast Build Systems Pty Ltd
- Elongate structural element, a bracket and an elongate structural section14 Jan 2020US 10,533,319 B2Stonelake Pty. Ltd.
- Steel beam21 Nov 2024US 2024/0384533 A1Peikko Group Oy
- Steel beam and supporting arrangement for supporting a steel beam at a console27 Jan 2022US 2022/0025636 A1Peikko Group Oy
- Building systems, panel systems, and formwork systems, panels and formwork for building & methods of building using panels and formwork22 Apr 2021US 2021/0115661 A1Fast Build Systems Pty Ltd
- Concrete embeddable corbel system8 Oct 2020US 2020/0318341 A1ALP Supply, Inc.
- Elongate Structural Element, a Bracket and an Elongate Structural Section21 May 2020US 2020/0157804 A1Stonelake Pty. Ltd.
Most cited
By later US patents
- Orthogonal framework for modular building systems114US 5,289,665 A1994
- Non-bonded framing system35US 3,971,179 A1976
- Automatic piston lock mechanism32US 5,938,367 AUnited Fixtures Company · 1999
- Connecting apparatus30US 6,754,992 B1The Steel Construction Institute · 2004
- Primary connector for pre-cast structures29US 6,494,639 B1Universal Services, Inc. · 2002