G21C 17/017
Inspection or maintenance of pipe-lines or tubes in nuclear installations
G21C17/017 (Inspection or maintenance of pipe-lines or tubes in nuclear installations) appears on 273 US grants and 240 published applications in this corpus.
Search patents in G21C- Granted patents
- 273
- Published applications
- 240
- Assignees
- 133
- Inventors
- 762
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 8 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 8 | 2 |
| 2002 | 6 | 2 |
| 2003 | 5 | 3 |
| 2004 | 2 | 10 |
| 2005 | 4 | 4 |
| 2006 | 7 | 9 |
| 2007 | 2 | 3 |
| 2008 | 3 | 10 |
| 2009 | 2 | 7 |
| 2010 | 6 | 18 |
| 2011 | 7 | 12 |
| 2012 | 10 | 26 |
| 2013 | 10 | 18 |
| 2014 | 14 | 11 |
| 2015 | 19 | 17 |
| 2016 | 12 | 12 |
| 2017 | 10 | 8 |
| 2018 | 6 | 5 |
| 2019 | 10 | 14 |
| 2020 | 12 | 12 |
| 2021 | 8 | 6 |
| 2022 | 8 | 7 |
| 2023 | 10 | 4 |
| 2024 | 1 | 9 |
| 2025 | 3 | 7 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for simulating an operation of one or more automated tools within a nuclear facility15 Sep 2026US 12,738,387 B2Ats Corporation
- Pipe evaluation robot and pipe evaluation method16 Jun 2026US 12,656,318 B2Korea Hydro & Nuclear Power Co., Ltd.
- Jet pump clamps and methods for use in a nuclear reactor jet pump12 May 2026US 12,624,708 B2GE-Hitachi Nuclear Energy Americas LLC
- Sensor mounting device for sensor testing17 Mar 2026US 12,578,213 B2Aptiv Technologies AG
- Process and tools to perform reactor pressure vessel nozzle expansion mitigating primary coolant leakage10 Mar 2026US 12,573,513 B2GE-Hitachi Nuclear Energy Americas LLC
- Methods and systems for thermal mix-point fatigue analysis1 Oct 2026US 2026/0300584 A1Akselos S.A.
- Ultrasound devices and methods for fuel channel inspection14 May 2026US 2026/0135008 A1Ontario Power Generation Inc.
- System and method for detecting leaks in a nuclear fuel pool assembly23 Apr 2026US 2026/0112512 A1Westinghouse Electric Corp.
- Ultrasonic testing device and ultrasonic testing method5 Feb 2026US 2026/0036556 A1Hitachi-GE Nuclear Energy, Ltd.
- Actuatable guide tube for electronic inspection scope4 Dec 2025US 2025/0369926 A1Rtx Corporation
Most cited
By later US patents
- Flexible cable243US 5,174,164 AWestinghouse Electric Corp. · 1992
- Modular observation crawler and sensing instrument and method for operating same200US 6,450,104 B1North Carolina State University · 2002
- Remote spray coating of nuclear cross-under piping104US 6,508,413 B2Siemens Westinghouse Power Corporation · 2003
- Apparatus for ultrasonically inspecting circular bores91US 4,304,134 AWestinghouse Electric Corp. · 1981
- Portable and collapsible pipe crawler83US 4,654,702 AWestinghouse Electric Corp. · 1987