G21C 15/25
Using jet pumps
Official title: using jet pumps
G21C15/25 (Using jet pumps) appears on 138 US grants and 126 published applications in this corpus.
Search patents in G21C- Granted patents
- 138
- Published applications
- 126
- Assignees
- 29
- Inventors
- 261
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 1 |
| 2002 | 7 | 3 |
| 2003 | 5 | 4 |
| 2004 | 1 | 3 |
| 2005 | 2 | 2 |
| 2006 | 1 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 8 |
| 2009 | 2 | 6 |
| 2010 | 1 | 10 |
| 2011 | 2 | 11 |
| 2012 | 9 | 25 |
| 2013 | 13 | 9 |
| 2014 | 18 | 5 |
| 2015 | 7 | 6 |
| 2016 | 3 | 4 |
| 2017 | 6 | 6 |
| 2018 | 3 | 3 |
| 2019 | 4 | 2 |
| 2020 | 7 | 8 |
| 2021 | 3 | 2 |
| 2022 | 4 | 2 |
| 2023 | 3 | 2 |
| 2024 | 3 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Jet pump clamps and methods for use in a nuclear reactor jet pump12 May 2026US 12,624,708 B2GE-Hitachi Nuclear Energy Americas LLC
- Intermixing feedwater sparger nozzles and methods for using the same in nuclear reactors13 Aug 2024US 12,062,459 B2GE-Hitachi Nuclear Energy Americas LLC
- Dual-mode heat removal system that allows first direction natural circulation flow through a heat exchanger during nuclear reactor emergency cooling and allows opposite direction forced flow through the heat exchanger during decay heat removal14 May 2024US 11,984,230 B2GE-Hitachi Nuclear Energy Americas LLC
- Use of isolation condenser and/or feedwater to limit core flow, core power, and pressure in a boiling water reactor9 Apr 2024US 11,955,248 B2GE-Hitachi Nuclear Energy Americas LLC
- Ultrasonic phased array transducer for the NDE inspection of the jet pump riser welds and welded attachments7 Nov 2023US 11,808,735 B2Westinghouse Electric Corp.
- Multi-mode heat removal systems for nuclear reactors and methods of using the same12 Sep 2024US 2024/0304347 A1GE-Hitachi Nuclear Energy Americas LLC
- Jet Pump Clamps and Methods for use in a Nuclear Reactor Jet Pump30 May 2024US 2024/0175450 A1GE-Hitachi Nuclear Energy Americas LLC
- System That Moves Liquid Fuel Into And Out Of A Nuclear Reactor Core To Control Reactivity7 Sep 2023US 2023/0282376 A1
- Ultrasonic phased array transducer for the nde inspection of the jet pump riser welds and welded attachments11 May 2023US 2023/0143492 A1Westinghouse Electric Corp.
- Coolant cleanup systems with direct mixing and methods of using the same23 Jun 2022US 2022/0199270 A1GE-Hitachi Nuclear Energy Americas LLC
Most cited
By later US patents
- Jet pump with labyrinth seal47US 4,285,770 AGeneral Electric Company · 1981
- Jet pump beam bolt retainer cutter35US 4,499,691 AGeneral Electric Company · 1985
- Apparatus for performing jet pump riser pipe repairs32US 6,053,652 AGeneral Electric Company · 2000
- Apparatus for performing jet pump riser pipe repairs31US 6,108,391 AGeneral Electric Company · 2000
- Emergency core cooling system28US 4,367,194 AThe United States of America as represented by the United States Department of Energy · 1983