E04B 1/48
Dowels, i.e. members adapted to penetrate the surfaces of two parts and
Official title: Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses
E04B1/48 (Dowels, i.e. members adapted to penetrate the surfaces of two parts and) appears on 219 US grants and 206 published applications in this corpus.
Search patents in E04B- Granted patents
- 219
- Published applications
- 206
- Assignees
- 112
- Inventors
- 308
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 10 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 2 | 0 |
| 2004 | 4 | 3 |
| 2005 | 0 | 5 |
| 2006 | 4 | 5 |
| 2007 | 1 | 4 |
| 2008 | 1 | 2 |
| 2009 | 1 | 0 |
| 2010 | 2 | 14 |
| 2011 | 2 | 7 |
| 2012 | 8 | 8 |
| 2013 | 3 | 3 |
| 2014 | 9 | 6 |
| 2015 | 2 | 10 |
| 2016 | 7 | 10 |
| 2017 | 13 | 21 |
| 2018 | 15 | 12 |
| 2019 | 10 | 14 |
| 2020 | 11 | 14 |
| 2021 | 9 | 15 |
| 2022 | 5 | 11 |
| 2023 | 11 | 23 |
| 2024 | 14 | 5 |
| 2025 | 13 | 5 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and apparatus for connecting precast concrete elements11 Aug 2026US 12,703,972 B2Structural Connections IP Pty Ltd
- Concrete dowel placement system and method of making the same14 Apr 2026US 12,601,168 B2Shaw & Sons, Inc.
- Concrete slab joint forming system and method17 Mar 2026US 12,577,737 B2Illinois Tool Works Inc.
- Armoured joint-disruptive folded anchor rail9 Dec 2025US 12,492,516 B2Illinois Tool Works Inc.
- Systems and methods for connecting UHPC structural elements9 Dec 2025US 12,492,546 B1The Florida International University Board of Trustees
- Dowel plate assembly for contiguous concrete slabs1 Oct 2026US 2026/0297930 A1OCM, Inc.
- Systems and methods for connecting uhpc structural elements17 Sep 2026US 2026/0275705 A1The Florida International University Board of Trustees
- Modular dowel basket10 Sep 2026US 2026/0266043 A1
- Mass timber panel connectors and assemblies, and methods related thereto27 Aug 2026US 2026/0250941 A1Tipping Structural Engineers
- Coupled beam and beam-pillar connection structure27 Aug 2026US 2026/0250942 A1Sekisui House, Ltd.
Most cited
By later US patents
- Concrete dowel placement sleeves96US 5,005,331 A1991
- Concrete dowel placement sleeves86US 5,216,862 A1993
- Dowel placement apparatus for monolithic concrete pour and method of use78US 5,487,249 A1996
- Apparatus and method for rigidly joining construction elements to one another76US 5,729,948 A1998
- System for transferring loads between cast-in-place slabs72US 6,354,760 B12002