G21C 9/04
Means for suppressing fires
Official title: Means for suppressing fires {; Earthquake protection}
G21C9/04 (Means for suppressing fires) appears on 101 US grants and 80 published applications in this corpus.
Search patents in G21C- Granted patents
- 101
- Published applications
- 80
- Assignees
- 59
- Inventors
- 230
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 3 |
| 2003 | 1 | 2 |
| 2004 | 0 | 0 |
| 2005 | 3 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 0 | 3 |
| 2012 | 2 | 3 |
| 2013 | 1 | 4 |
| 2014 | 3 | 1 |
| 2015 | 1 | 9 |
| 2016 | 4 | 10 |
| 2017 | 4 | 4 |
| 2018 | 4 | 5 |
| 2019 | 8 | 6 |
| 2020 | 7 | 3 |
| 2021 | 3 | 3 |
| 2022 | 2 | 8 |
| 2023 | 3 | 3 |
| 2024 | 5 | 5 |
| 2025 | 6 | 3 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Nuclear modular isolated reactor support system assembly and modules29 Sep 2026US 12,749,587 B2GE-Hitachi Nuclear Energy Americas LLC
- Passive heat removal system for nuclear reactors14 Jul 2026US 12,683,034 B2TerraPower, LLC
- Nuclear reactor system arranged to inject material into heat pipes to suppress a fire26 May 2026US 12,640,276 B1Triad National Security, LLC
- Distributed modular nuclear power plant layout architecture12 May 2026US 12,626,831 B2GE-Hitachi Nuclear Energy Americas LLC
- Digital twin platform provision system for detecting and responding to fire in installation region of electrical equipment in nuclear power plant20 Jan 2026US 12,530,002 B2Kfubis. Co., Ltd.
- Curvilinear electromagnetic pump30 Apr 2026US 2026/0121503 A1TerraPower, LLC
- Systems and methods for reducing noncondensable gas buildup in coolant systems12 Feb 2026US 2026/0045379 A1GE-Hitachi Nuclear Energy Americas LLC
- Method and apparatus for dismantling nuclear power plant20 Nov 2025US 2025/0357016 A1Korea Hydro & Nuclear Power Co., Ltd.
- Inertial energy coastdown for electromagnetic pump5 Jun 2025US 2025/0183776 A1TerraPower, LLC
- Digital twin platform provision system for detecting and responding to fire in installation region of electrical equipment in nuclear power plant1 May 2025US 2025/0140427 A1Kfubis. Co., Ltd.
Most cited
By later US patents
- Barbed tee fastener39US 5,433,053 ABechtel Corporation · 1995
- Anti-vibration apparatus for seismic acceleration35US 4,596,373 AMitsubishi Steel Mfg. Co., Ltd. · 1986
- Earthquake resistant hall for a nuclear boiler and its confinement chamber24US 4,581,199 AAlsthom-Atlantique · 1986
- Mechanical attenuator18US 4,179,104 ADevelopment Finance Corporation of New Zealand · 1979
- Remotely adjustable intermediate seismic support15US 4,666,657 AWestinghouse Electric Corp. · 1987