E04C 3/12
Of wood
Official title: of wood, e.g. with reinforcements, with tensioning members (E04C3/292 takes precedence)
E04C3/12 (Of wood) appears on 613 US grants and 505 published applications in this corpus.
Search patents in E04C- Granted patents
- 613
- Published applications
- 505
- Assignees
- 281
- Inventors
- 975
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 8 | 0 |
| 1979 | 0 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 10 | 0 |
| 1985 | 8 | 0 |
| 1986 | 5 | 0 |
| 1987 | 13 | 0 |
| 1988 | 5 | 0 |
| 1989 | 9 | 0 |
| 1990 | 7 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 9 | 0 |
| 1994 | 6 | 0 |
| 1995 | 9 | 0 |
| 1996 | 11 | 0 |
| 1997 | 17 | 0 |
| 1998 | 18 | 0 |
| 1999 | 20 | 0 |
| 2000 | 20 | 0 |
| 2001 | 23 | 7 |
| 2002 | 24 | 28 |
| 2003 | 16 | 17 |
| 2004 | 18 | 21 |
| 2005 | 6 | 27 |
| 2006 | 15 | 24 |
| 2007 | 7 | 23 |
| 2008 | 9 | 22 |
| 2009 | 8 | 14 |
| 2010 | 15 | 17 |
| 2011 | 9 | 19 |
| 2012 | 15 | 18 |
| 2013 | 13 | 17 |
| 2014 | 19 | 14 |
| 2015 | 12 | 15 |
| 2016 | 11 | 21 |
| 2017 | 19 | 24 |
| 2018 | 15 | 11 |
| 2019 | 19 | 30 |
| 2020 | 23 | 21 |
| 2021 | 24 | 25 |
| 2022 | 20 | 19 |
| 2023 | 20 | 15 |
| 2024 | 17 | 22 |
| 2025 | 8 | 17 |
| 2026 | 12 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multiple port beam bracket21 Jul 2026US RE50,958 E1Fox Hardwood Lumber Company, L.L.C.
- Modular i-joist notch reinforcer14 Jul 2026US 12,680,304 B1
- Lumber assembly and finishing system26 May 2026US 12,636,809 B2Columbia Insurance Company
- Conveyor system26 May 2026US 12,637,292 B2Builders FirstSource, Inc.
- Floor system26 May 2026US 12,637,858 B2Mitek Holdings, Inc.
- Drywall Spacing Joist Hanger8 Oct 2026US 2026/0308903 A1
- Automated systems and methods for truss assemblies in the construction of modular buildings1 Oct 2026US 2026/0295896 A1Buildz, LLC
- Truss assembly using metal plates1 Oct 2026US 2026/0299541 A1Simpson Strong-Tie Company, Inc.
- Laminated timber beam production system17 Sep 2026US 2026/0273913 A1MINDA Industrieanlagen GmbH
- Lumber assembly and finishing system3 Sep 2026US 2026/0257394 A1Columbia Insurance Company
Most cited
By later US patents
- Manufacture of wooden beams207US 4,738,071 AEzijoin Pty. Ltd. · 1988
- Manufacture of wooden beams186US 4,653,242 AEzijoin Pty. Ltd. · 1987
- Wooden joist with web members having cut tapered edges and vent slots182US 4,715,162 ATrus Joist Corporation · 1987
- Structural members of composite wood material and process for making same103US 4,241,133 ABoard of Control of Michigan Technological University · 1980
- Process for making a reinforced board from lignocellulosic particles75US 4,058,580 A1977