G21C 19/105
With grasping or spreading coupling elements
Official title: with grasping or spreading coupling elements
G21C19/105 (With grasping or spreading coupling elements) appears on 84 US grants and 39 published applications in this corpus.
Search patents in G21C- Granted patents
- 84
- Published applications
- 39
- Assignees
- 41
- Inventors
- 206
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 2 | 7 |
| 2012 | 1 | 2 |
| 2013 | 2 | 1 |
| 2014 | 3 | 2 |
| 2015 | 1 | 1 |
| 2016 | 3 | 2 |
| 2017 | 2 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 2 |
| 2020 | 0 | 2 |
| 2021 | 2 | 1 |
| 2022 | 3 | 2 |
| 2023 | 2 | 3 |
| 2024 | 1 | 1 |
| 2025 | 2 | 4 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- In-vessel core component handling systems and methods28 Apr 2026US 12,614,644 B2TerraPower, LLC
- Systems and methods for laser inspection and measurements1 Jul 2025US 12,347,575 B23D at Depth, Inc.
- Fuel cell lifting system for nuclear reactors1 Jul 2025US 12,347,576 B2Oklo Inc.
- Mechanical grasping end effector with linear engagement and disengagement movement22 Oct 2024US 12,125,600 B2Ford Global Technologies, LLC
- Boiling water reactor blade guide and exchange tool5 Sep 2023US 11,749,416 B2GE-Hitachi Nuclear Energy Americas LLC
- Fuel, heat exchanger, and instrumentation for nuclear reactors16 Oct 2025US 2025/0322974 A1Oklo Inc.
- Refuelling of a nuclear reactor6 Mar 2025US 2025/0079028 A1Rolls-Royce Smr Limited
- Fuel assembly for a nuclear power plant, method for activating a material to be activated and gripper27 Feb 2025US 2025/0069763 A1
- Mechanical grasping end effector with linear engagement and disengagement movement6 Feb 2025US 2025/0046482 A1Ford Global Technologies, LLC
- In-vessel core component handling systems and methods19 Sep 2024US 2024/0312655 A1TerraPower, LLC
Most cited
By later US patents
- Fuel rod gripper end cap for minimizing impact with grid cell dimples32US 4,966,745 AWestinghouse Electric Corp. · 1990
- Fuel rod gripper end cap for minimizing impact with grid cell dimples30US 5,043,134 AWestinghouse Electric Corp. · 1991
- Refueling machine for a nuclear reactor28US 4,311,557 AWestinghouse Electric Corp. · 1982
- Tool for exchanging and transporting irradiation capsules of a nuclear reactor24US 4,244,616 AFramatome · 1981
- Operating devices for control rods in a nuclear reactor24US 4,472,348 AFramatome · 1984