E04H 7/20
Prestressed constructions
E04H7/20 (Prestressed constructions) appears on 59 US grants and 33 published applications in this corpus.
Search patents in E04H- Granted patents
- 59
- Published applications
- 33
- Assignees
- 23
- Inventors
- 92
- Latest grant
- 4 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 2 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 2 | 3 |
| 2015 | 0 | 2 |
| 2016 | 3 | 4 |
| 2017 | 3 | 1 |
| 2018 | 3 | 4 |
| 2019 | 2 | 1 |
| 2020 | 2 | 3 |
| 2021 | 2 | 2 |
| 2022 | 2 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Precast, prestressed concrete cryogenic tanks-sliding base insulation system and method for full and double containment systems4 Feb 2025US 12,215,827 B2Preload Cryogenics, LLC
- Apparatus and methods for underground structures and construction thereof30 Jan 2024US 11,885,224 B2
- System and method of storing and recovering energy by means of compressed gas, comprising a mixed layer of prestressed concrete1 Nov 2022US 11,486,542 B2Ifp Energies Nouvelles
- Precast and prestressed concrete tank with temporary construction opening4 Oct 2022US 11,459,782 B2Preload Cryogenics, LLC
- Overflow spout for tank21 Sep 2021US 11,124,927 B1The Crom Corporation
- Precast, prestressed concrete cryogenic tanks - sliding base insulation system and method for full and double containment systems24 Sep 2026US 2026/0287118 A1Preload Cryogenics, LLC
- Watertight composite straight wall post-tensioned concrete tank structure and methods for making or using same8 May 2025US 2025/0146318 A1The Crom Corporation
- Precast, prestressed concrete cryogenic tanks - sliding base insulation system and method for full and double containment systems20 Feb 2025US 2025/0060071 A1Preload Cryogenics, LLC
- Apparatus and Methods for Underground Structures and Construction Thereof14 Nov 2024US 2024/0376821 A1
- Method for Adsorptive Storage of Natural Gas, Methane, and Complex for Implementation Thereof4 Jul 2024US 2024/0218979 A1Publichnoe Aktsionernoe Obschestvo “Gazprom”
Most cited
By later US patents
- Concrete tank of precast concrete panels with pretensioning beam means34US 4,015,383 A1977
- Circular or generally circular prestressed concrete tank and method of constructing same27US 5,590,497 A1997
- Storage tanks25US 4,075,801 A1978
- Multi-purpose dome structure and the construction thereof22US 5,094,044 A1992
- Concrete tank21US 4,126,976 A1978