G21D 1/006
Primary side of steam generators
Official title: {primary side of steam generators (secondary side of steam generators F22B1/00, F22B35/00 or F22B37/00)}
G21D1/006 (Primary side of steam generators) appears on 128 US grants and 155 published applications in this corpus.
Search patents in G21D- Granted patents
- 128
- Published applications
- 155
- Assignees
- 66
- Inventors
- 318
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 4 |
| 2011 | 0 | 4 |
| 2012 | 0 | 11 |
| 2013 | 5 | 13 |
| 2014 | 3 | 4 |
| 2015 | 10 | 19 |
| 2016 | 10 | 9 |
| 2017 | 8 | 9 |
| 2018 | 13 | 12 |
| 2019 | 11 | 10 |
| 2020 | 10 | 12 |
| 2021 | 8 | 13 |
| 2022 | 12 | 8 |
| 2023 | 4 | 4 |
| 2024 | 12 | 8 |
| 2025 | 2 | 7 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for compressing steam from a nuclear steam supply system to operate a turbogenerator7 Jul 2026US 12,676,248 B2Holtec International
- Method for treating a metal part of a primary circuit of a water-cooled nuclear reactor9 Jun 2026US 12,651,674 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Integrated control logic device and operating method thereof to control water level of steam generator of nuclear power plant26 May 2026US 12,638,171 B2Kepco Engineering & Construction Company, Inc.
- Devices, systems, and methods for cooling a nuclear reactor with hydride moderators7 Apr 2026US 12,597,530 B2Westinghouse Electric Corp.
- Micro nuclear reactor having a heat pipe extending into a core comprising fuel particles mixed with moderator particles, where the particles can be gravity discharged from the core through a bottom outlet17 Mar 2026US 12,580,088 B2Seoul National University R&Db Foundation
- Devices, systems, and methods for cooling a nuclear reactor with hydride moderators20 Aug 2026US 2026/0245753 A1Westinghouse Electric Corp.
- Combined cycle nuclear power plant14 May 2026US 2026/0132921 A1NuScale Power, LLC
- Approach temperature steam generator control16 Apr 2026US 2026/0104163 A1NuScale Power, LLC
- System for heat transfer between primary and secondary fluid circuits within a diffusion-bonded pressure vessel wall for a nuclear reactor5 Feb 2026US 2026/0038704 A1Last Energy Inc.
- Hybrid power generation system22 Jan 2026US 2026/0024674 A1Holtec International
Most cited
By later US patents
- Dual seal nozzle dam and alignment means therefor55US 4,671,326 AWestinghouse Electric Corp. · 1987
- Nuclear reactor configured to have molten fuel pass through plural heat exchangers before returning to core31US 10,497,479 B2TerraPower, LLC · 2019
- Consolidated nuclear steam generator25US 3,941,187 AThe Babcock & Wilcox Company · 1976
- Method of uprating an existing nuclear power plant22US 6,909,765 B2Westinghouse Electric Corp. · 2005
- Procedure for complete replacement of a steam generator of a pressurized water nuclear reactor16US 4,847,038 AFramatome · 1989