B28B 23/046
Post treatment to obtain pre-stressed articles
Official title: {Post treatment to obtain pre-stressed articles}
B28B23/046 (Post treatment to obtain pre-stressed articles) appears on 29 US grants and 24 published applications in this corpus.
Search patents in B28B- Granted patents
- 29
- Published applications
- 24
- Assignees
- 22
- Inventors
- 51
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 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 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 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 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 2 |
| 2016 | 1 | 1 |
| 2017 | 1 | 4 |
| 2018 | 3 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 2 |
| 2021 | 1 | 2 |
| 2022 | 2 | 2 |
| 2023 | 2 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Removal-facilitated anchor sealing device for box girder construction26 May 2026US 12,636,813 B2Yantai University
- Concrete product comprising an adaptive prestressing system, and method of locally prestressing a concrete product13 May 2025US 12,297,644 B2The Board of Trustees of the University of Illinois
- Method of producing a plurality of concrete cast elements18 Jun 2024US 12,011,849 B2Voestalpine Railway Systems GmbH
- Refined prestressed concrete elements3 Oct 2023US 11,773,589 B2Advanced Bridge Construction Technologies, Inc
- Pre-stressed concrete pipe17 Jan 2023US 11,555,562 B1
- Removal-facilitated anchor sealing device for box girder construction6 Jun 2024US 2024/0181675 A1Yantai University
- Grout for the injection of prestressing cables and method for installing a cable comprising such a grout6 Jul 2023US 2023/0212073 A1Soletanche Freyssinet
- Concrete product comprising an adaptive prestressing system, and method of locally prestressing a concrete product26 Jan 2023US 2023/0024816 A1The Board of Trustees of the University of Illinois
- Refined prestressed concrete elements10 Nov 2022US 2022/0356703 A1Advanced Bridge Construction Technologies, Inc
- Method of producing a plurality of concrete cast elements7 Jul 2022US 2022/0212365 A1Voestalpine Railway Systems GmbH
Most cited
By later US patents
- Method of and parts used in the construction of a prestressed concrete structure24US 4,185,440 ADyckerhoff & Widmann Aktiengesellschaft · 1980
- Pocket former15US 7,216,842 B2Lomont Molding, Inc. · 2007
- Portable tensioning system for producing pre-stressed concrete beams14US 4,149,306 ACharles Pankow, Inc. · 1979
- Method and apparatus for inserting post-stressing tendons in concrete structures13US 4,095,326 ASociete Technique pour l'Utilisation de la Precontrainte · 1978
- Apparatus for extruding reinforced concrete12US 4,067,676 A1978