G21C 1/086
Pressurised water reactors
Official title: {Pressurised water reactors}
G21C1/086 (Pressurised water reactors) appears on 75 US grants and 68 published applications in this corpus.
Search patents in G21C- Granted patents
- 75
- Published applications
- 68
- Assignees
- 42
- Inventors
- 193
- Latest grant
- 31 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 7 |
| 2013 | 1 | 7 |
| 2014 | 3 | 5 |
| 2015 | 5 | 8 |
| 2016 | 5 | 3 |
| 2017 | 5 | 4 |
| 2018 | 8 | 3 |
| 2019 | 2 | 3 |
| 2020 | 5 | 3 |
| 2021 | 4 | 4 |
| 2022 | 2 | 4 |
| 2023 | 5 | 2 |
| 2024 | 6 | 4 |
| 2025 | 0 | 5 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Single-loop nuclear power plant with pressurized coolant31 Dec 2024US 12,183,471 B2Joint-Stock Company “Atomenergoproekt”
- Method for decommissioning nuclear facility22 Oct 2024US 12,125,602 B2Korea Hydro & Nuclear Power Co., Ltd.
- Thorium-based fuel design for pressurized heavy water reactors3 Sep 2024US 12,080,436 B2Clean Core Thorium Energy LLC
- Compact reactor with horizontal steam generators and pressurizer6 Aug 2024US 12,057,240 B2Invap S.E.
- Thorium-based fuel design for pressurized heavy water reactors12 Mar 2024US 11,929,183 B2Clean Core Thorium Energy LLC
- Hybrid power generation system30 Apr 2026US 2026/0121573 A1Holtec International
- Method and apparatus for determining rod position of control rod of pressurized water reactor, and rod position measurement system13 Nov 2025US 2025/0349445 A1Cnnp Nuclear Power Operations Management Co., Ltd.
- Method for refurbishing a nuclear power plant initially comprising at least one light-water nuclear reactor (lwr), in particular a pressurised water reactor (pwr) or a boiling water reactor (bwr), with at least one integrated modular nuclear reactor (smr)18 Sep 2025US 2025/0292924 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Energy source11 Sep 2025US 2025/0285776 A1Witkowitz Atomica A.S.
- Method and system for controlling a nuclear power plant4 Sep 2025US 2025/0279217 A1
Most cited
By later US patents
- Nuclear reactor submerged high temperature spool pump37US 6,813,328 B2Curtiss-Wright Electro-Mechanical Corporation · 2004
- Mechanical design of a light water breeder reactor33US 3,957,575 AThe United States of America as represented by the United States Energy Research and Development Administration · 1976
- Unitary, transportable, assembled nuclear steam supply system with life time fuel supply and method of operating same30US 6,259,760 B1Westinghouse Electric Corp. · 2001
- Lower tie plate strainers including double corrugated strainers for boiling water reactors29US 5,483,564 AGeneral Electric Company · 1996
- Passive safety injection system using borated water27US 5,180,543 AWestinghouse Electric Corp. · 1993