G21C 13/022
Ventilating arrangements
Official title: {Ventilating arrangements}
G21C13/022 (Ventilating arrangements) appears on 48 US grants and 58 published applications in this corpus.
Search patents in G21C- Granted patents
- 48
- Published applications
- 58
- Assignees
- 33
- Inventors
- 159
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 2 | 5 |
| 2015 | 1 | 2 |
| 2016 | 3 | 5 |
| 2017 | 0 | 2 |
| 2018 | 4 | 1 |
| 2019 | 3 | 6 |
| 2020 | 3 | 5 |
| 2021 | 3 | 4 |
| 2022 | 9 | 8 |
| 2023 | 1 | 3 |
| 2024 | 3 | 4 |
| 2025 | 2 | 1 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Air purification processing apparatus4 Jun 2026US 2026/0155270 A1Century, LLC
- Steam-water separator and boiling-water reactor3 Apr 2025US 2025/0111956 A1Hitachi-GE Nuclear Energy, Ltd.
- Controlling a power output of a nuclear reaction using chemical injection5 Dec 2024US 2024/0404716 A1NuScale Power, LLC
Most cited
By later US patents
- Passive containment cooling system52US 5,049,353 AWestinghouse Electric Corp. · 1991
- Internal dry containment vessel for a nuclear reactor22US 8,687,759 B2State of Oregon acting by and through the State Board of Higher Education on behalf of Oregon State University · 2014
- Systems and methods for airflow control in reactor passive decay heat removal11US 10,937,557 B2GE-Hitachi Nuclear Energy Americas LLC · 2021
- Methods for airflow control in reactor passive decay heat removal using a damper11US 11,380,450 B2GE-Hitachi Nuclear Energy Americas LLC · 2022
- Nuclear reactor installation11US 4,057,464 ASiemens Aktiengesellschaft · 1977