G21C 17/003
Remote inspection of vessels
Official title: Remote inspection of vessels, e.g. pressure vessels
G21C17/003 (Remote inspection of vessels) appears on 331 US grants and 224 published applications in this corpus.
Search patents in G21C- Granted patents
- 331
- Published applications
- 224
- Assignees
- 135
- Inventors
- 816
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 7 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 6 | 0 |
| 1983 | 2 | 0 |
| 1984 | 7 | 0 |
| 1985 | 8 | 0 |
| 1986 | 3 | 0 |
| 1987 | 13 | 0 |
| 1988 | 9 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 7 | 0 |
| 1993 | 8 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 10 | 0 |
| 1997 | 8 | 0 |
| 1998 | 13 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 4 |
| 2003 | 4 | 4 |
| 2004 | 1 | 7 |
| 2005 | 3 | 6 |
| 2006 | 6 | 4 |
| 2007 | 3 | 8 |
| 2008 | 3 | 4 |
| 2009 | 1 | 5 |
| 2010 | 7 | 13 |
| 2011 | 1 | 9 |
| 2012 | 6 | 21 |
| 2013 | 10 | 17 |
| 2014 | 10 | 13 |
| 2015 | 16 | 20 |
| 2016 | 15 | 11 |
| 2017 | 12 | 6 |
| 2018 | 11 | 9 |
| 2019 | 15 | 17 |
| 2020 | 15 | 13 |
| 2021 | 7 | 3 |
| 2022 | 9 | 6 |
| 2023 | 5 | 6 |
| 2024 | 6 | 9 |
| 2025 | 3 | 1 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Single-pass 3D reconstruction of internal surface of pipelines using depth camera array2 Jun 2026US 12,644,847 B2NUtech Ventures
- 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
- Electrical penetration3 Mar 2026US 12,567,507 B2Hitachi GE Vernova Nuclear Energy, Ltd.
- Systems for underwater tool positioning9 Dec 2025US 12,494,297 B2GE-Hitachi Nuclear Energy Americas LLC
- Systems and methods for laser inspection and measurements1 Jul 2025US 12,347,575 B23D at Depth, Inc.
- Inspection device, inspection system, and inspection method13 Aug 2026US 2026/0235558 A1IHI Corporation
- Device for inspecting a nuclear reactor vessel9 Jul 2026US 2026/0196369 A1
- Dual use of installed nuclear power module sensors for international safeguards11 Jun 2026US 2026/0162840 A1NuScale Power, LLC
- Method of testing leak rate of reactor containment building4 Jun 2026US 2026/0155269 A1Korea Hydro & Nuclear Power Co., Ltd.
- Reactor vibration measurement device30 Apr 2026US 2026/0118160 A1Doosan Enerbility Co., Ltd.
Most cited
By later US patents
- Apparatus for obstacle traversion137US 6,512,345 B2The Regents of the University of Michigan · 2003
- Laser-guided underwater wall climbing robot for reactor pressure vessel inspection104US 5,809,099 AKorea Atomic Energy Research Institute · 1998
- Nozzle inner radius inspection system86US 4,526,037 ACombustion Engineering, Inc. · 1985
- Portable and collapsible pipe crawler83US 4,654,702 AWestinghouse Electric Corp. · 1987
- Underwater vehicle and method of positioning same80US 5,852,984 AIshikawajimi-Harima Heavy Industries Co., Ltd. · 1998