E04B 1/541
Joints substantially without separate connecting elements
Official title: {Joints substantially without separate connecting elements, e.g. jointing by inter-engagement}
E04B1/541 (Joints substantially without separate connecting elements) appears on 97 US grants and 95 published applications in this corpus.
Search patents in E04B- Granted patents
- 97
- Published applications
- 95
- Assignees
- 32
- Inventors
- 108
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 7 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 2 | 0 |
| 2013 | 4 | 14 |
| 2014 | 6 | 7 |
| 2015 | 9 | 10 |
| 2016 | 9 | 10 |
| 2017 | 8 | 5 |
| 2018 | 6 | 9 |
| 2019 | 9 | 6 |
| 2020 | 3 | 3 |
| 2021 | 6 | 10 |
| 2022 | 8 | 3 |
| 2023 | 6 | 7 |
| 2024 | 3 | 3 |
| 2025 | 2 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Framing system including tubes joined with slots, hooks and wedges integrated into the tubes25 Aug 2026US 12,716,442 B2
- Floor panel14 Apr 2026US 12,601,187 B2Unilin BV
- Systems and methods for assembling prefabricated walls27 Jan 2026US 12,534,907 B2Wall to Wall, LLC
- Panel and methods for manufacturing panels4 Mar 2025US 12,241,262 B2Unilin BV
- Transparent composite material as cladding material for architectural features in building construction18 Feb 2025US 12,226,984 B2SC Innovation, LLC
- Floor panel8 Oct 2026US 2026/0308921 A1Unilin BV
- Structural Assembly13 Feb 2025US 2025/0052052 A1
- Floor panel9 Jan 2025US 2025/0012097 A1Unilin BV
- Modular Building System5 Sep 2024US 2024/0295117 A1Webster Property Group, LLC
- Framing system including tubes joined with slots, hooks and wedges integrated into the tubes11 Jul 2024US 2024/0229479 A1
Most cited
By later US patents
- Foamed-in-place double-skin building panel293US 4,037,377 AH. H. Robertson Company · 1977
- Mechanical locking system for panels and method of installing same268US 7,841,145 B2Välinge Innovation AB · 2010
- Mechanical locking of floor panels with a flexible tongue188US 8,341,915 B2Välinge Innovation AB · 2013
- Wall panel unit176US 4,107,892 AButler Manufacturing Company · 1978
- Building panel with a mechanical locking system175US 8,596,013 B2Välinge Innovation AB · 2013