G21C 9/004
Pressure suppression
G21C9/004 (Pressure suppression) appears on 260 US grants and 186 published applications in this corpus.
Search patents in G21C- Granted patents
- 260
- Published applications
- 186
- Assignees
- 99
- Inventors
- 536
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 7 | 0 |
| 1978 | 2 | 0 |
| 1979 | 7 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 6 | 0 |
| 1987 | 10 | 0 |
| 1988 | 4 | 0 |
| 1989 | 8 | 0 |
| 1990 | 4 | 0 |
| 1991 | 8 | 0 |
| 1992 | 7 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 3 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 2 | 7 |
| 2010 | 4 | 4 |
| 2011 | 2 | 3 |
| 2012 | 4 | 12 |
| 2013 | 5 | 13 |
| 2014 | 9 | 22 |
| 2015 | 3 | 17 |
| 2016 | 11 | 12 |
| 2017 | 12 | 12 |
| 2018 | 11 | 15 |
| 2019 | 15 | 9 |
| 2020 | 18 | 16 |
| 2021 | 8 | 7 |
| 2022 | 11 | 8 |
| 2023 | 7 | 3 |
| 2024 | 4 | 10 |
| 2025 | 3 | 2 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Reactor containment vessel vent system16 Jun 2026US 12,658,332 B2Hitachi GE Vernova Nuclear Energy, Ltd.
- Filter for removing radioactive noble gas, filter unit and reactor containment vent system12 May 2026US 12,623,182 B2Hitachi GE Vernova Nuclear Energy, Ltd.
- Depressurisation valve31 Mar 2026US 12,590,645 B2Rolls-Royce Smr Limited
- Depressurisation valve10 Mar 2026US 12,573,510 B2Rolls-Royce Smr Limited
- Gas equalization and management system for a molten salt nuclear reactor17 Feb 2026US 12,555,693 B2Abilene Christian University
- Valve set for safety of nuclear power plant, pressure relief valve set, discharge valve set, and isolation valve27 Aug 2026US 2026/0253755 A1China Nuclear Power Engineering Co., Ltd.
- Containment vacuum breaker13 Aug 2026US 2026/0237532 A1NuScale Power, LLC
- Gas management systems for a molten salt nuclear reactor30 Jul 2026US 2026/0221298 A1Abilene Christian University
- Nuclear power plant18 Jun 2026US 2026/0171274 A1
- Pressurizer valve device and reactor facility including the same30 Oct 2025US 2025/0336553 A1Korea Atomic Energy Research Institute
Most cited
By later US patents
- Passive containment cooling system43US 5,282,230 AGeneral Electric Company · 1994
- Passive nuclear power plant containment system35US 4,986,956 AStone & Webster Engineering Corp. · 1991
- Device for limiting accidental pressure overloads in a nuclear reactor confinement structure33US 4,022,655 ACommissariat A L' Energie Atomique · 1977
- Rupture disc32US 4,064,003 AThe United States of America as represented by the United States Energy Research and Development Administration · 1977
- Passive containment cooling system of nuclear reactor30US 5,761,262 AKorea Advanced Institute of Science and Technology · 1998