G21K
Handling of particles or ionising radiation not otherwise provided for
Official title: Handling of particles or ionising radiation not otherwise provided for; irradiation devices; gamma ray or x-ray microscopes
G21K (Handling of particles or ionising radiation not otherwise provided for) appears on 7,627 US grants and 6,708 published applications in this corpus.
Search patents in G21K- Granted patents
- 7,627
- Published applications
- 6,708
- Assignees
- 2,098
- Inventors
- 12,589
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 53 | 0 |
| 1977 | 54 | 0 |
| 1978 | 65 | 0 |
| 1979 | 30 | 0 |
| 1980 | 54 | 0 |
| 1981 | 44 | 0 |
| 1982 | 45 | 0 |
| 1983 | 43 | 0 |
| 1984 | 57 | 0 |
| 1985 | 61 | 0 |
| 1986 | 66 | 0 |
| 1987 | 76 | 0 |
| 1988 | 79 | 0 |
| 1989 | 102 | 0 |
| 1990 | 101 | 0 |
| 1991 | 129 | 0 |
| 1992 | 99 | 0 |
| 1993 | 91 | 0 |
| 1994 | 89 | 0 |
| 1995 | 89 | 0 |
| 1996 | 102 | 0 |
| 1997 | 94 | 0 |
| 1998 | 104 | 0 |
| 1999 | 90 | 0 |
| 2000 | 103 | 0 |
| 2001 | 139 | 63 |
| 2002 | 162 | 168 |
| 2003 | 165 | 223 |
| 2004 | 175 | 272 |
| 2005 | 162 | 266 |
| 2006 | 212 | 246 |
| 2007 | 206 | 249 |
| 2008 | 190 | 213 |
| 2009 | 178 | 197 |
| 2010 | 188 | 237 |
| 2011 | 123 | 262 |
| 2012 | 180 | 275 |
| 2013 | 229 | 374 |
| 2014 | 295 | 366 |
| 2015 | 340 | 380 |
| 2016 | 312 | 330 |
| 2017 | 324 | 324 |
| 2018 | 283 | 312 |
| 2019 | 312 | 266 |
| 2020 | 314 | 300 |
| 2021 | 229 | 278 |
| 2022 | 260 | 259 |
| 2023 | 196 | 268 |
| 2024 | 229 | 239 |
| 2025 | 204 | 197 |
| 2026 | 100 | 144 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- G21K 1/00Arrangements for handling particles or ionising radiation4,949
- G21K 5/00Irradiation devices1,505
- G21K 4/00Conversion screens for the conversion of the spatial distribution of x-rays or1,155
- G21K 2201/00Arrangements for handling radiation or particlesIndexing code826
- G21K 2207/00Particular details of imaging devices or methods using ionizing electromagnetic radiation suchIndexing code291
- G21K 7/00Gamma- or x-ray microscopes216
Recent patents
- Systems and methods for driving leaves in a multi-leaf collimator6 Oct 2026US 12,755,858 B2Shanghai United Imaging Healthcare Co., Ltd.
- Perovskite-organic chromophore based X-ray imagining scintillator6 Oct 2026US 12,755,859 B2King Abdullah University of Science and Technology
- Extreme ultraviolet light source device6 Oct 2026US 12,757,312 B2Samsung Electronics Co., Ltd.
- Nanophotonic scintillators for high-energy particles detection, imaging, and spectroscopy29 Sep 2026US 12,748,060 B2Massachusetts Institute of Technology
- Imaging system collimator for high energy and low energy isotopes29 Sep 2026US 12,749,590 B2GE Precision Healthcare LLC
- Confinement assembly ground plane for radio frequency (rf) field control8 Oct 2026US 2026/0311907 A1Quantinuum LLC
- Method for manufacturing an electrode structure for an ion trap and method for manufacturing an electrode arrangement for a 3-dimensional ion trap8 Oct 2026US 2026/0314275 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Composite optical bench1 Oct 2026US 2026/0301987 A1Quantinuum LLC
- Systems and methods for assembling electron spin and charge to possess properties of a magnetic monopole1 Oct 2026US 2026/0301988 A1University of Pittsburgh—Of the Commonwealth System of Higher Education
- Beam-modifying devices for ultra-high dose rate radiation therapy1 Oct 2026US 2026/0304590 A1Ohio State Innovation Foundation
Most cited
By later US patents
- Integrated variable-aperture collimator and fixed-aperture collimator1,021US 8,093,572 B2Accuray Incorporated · 2012
- Electronic conical collimator verification1,019US 8,675,820 B2Varian Medical Systems, Inc. · 2014
- Apparatus and method providing substantially two-dimensionally uniform irradiation542US 6,649,921 B1Fusion UV Systems, Inc. · 2003
- Apparatus and method for exposing a substrate to UV radiation using asymmetric reflectors473US 7,692,171 B22010
- Neutral particle beam processing apparatus423US 6,861,642 B2Ebara Corporation · 2005