G21K 1/02
Arrangements for handling particles or ionising radiation: using diaphragms, collimators
Official title: using diaphragms, collimators
G21K1/02 (Arrangements for handling particles or ionising radiation: using diaphragms, collimators) appears on 2,051 US grants and 1,701 published applications in this corpus.
Search patents in G21K- Granted patents
- 2,051
- Published applications
- 1,701
- Assignees
- 721
- Inventors
- 3,471
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 13 | 0 |
| 1978 | 26 | 0 |
| 1979 | 14 | 0 |
| 1980 | 22 | 0 |
| 1981 | 13 | 0 |
| 1982 | 14 | 0 |
| 1983 | 15 | 0 |
| 1984 | 15 | 0 |
| 1985 | 15 | 0 |
| 1986 | 15 | 0 |
| 1987 | 31 | 0 |
| 1988 | 27 | 0 |
| 1989 | 32 | 0 |
| 1990 | 24 | 0 |
| 1991 | 29 | 0 |
| 1992 | 23 | 0 |
| 1993 | 29 | 0 |
| 1994 | 24 | 0 |
| 1995 | 21 | 0 |
| 1996 | 28 | 0 |
| 1997 | 24 | 0 |
| 1998 | 22 | 0 |
| 1999 | 13 | 0 |
| 2000 | 26 | 0 |
| 2001 | 30 | 10 |
| 2002 | 33 | 29 |
| 2003 | 30 | 41 |
| 2004 | 37 | 47 |
| 2005 | 34 | 57 |
| 2006 | 47 | 47 |
| 2007 | 43 | 54 |
| 2008 | 56 | 60 |
| 2009 | 59 | 63 |
| 2010 | 49 | 73 |
| 2011 | 35 | 74 |
| 2012 | 53 | 84 |
| 2013 | 48 | 99 |
| 2014 | 67 | 96 |
| 2015 | 115 | 114 |
| 2016 | 81 | 82 |
| 2017 | 84 | 97 |
| 2018 | 71 | 89 |
| 2019 | 89 | 65 |
| 2020 | 99 | 86 |
| 2021 | 73 | 81 |
| 2022 | 76 | 76 |
| 2023 | 59 | 77 |
| 2024 | 70 | 46 |
| 2025 | 51 | 33 |
| 2026 | 26 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for driving leaves in a multi-leaf collimator6 Oct 2026US 12,755,858 B2Shanghai United Imaging Healthcare Co., Ltd.
- Imaging system collimator for high energy and low energy isotopes29 Sep 2026US 12,749,590 B2GE Precision Healthcare LLC
- Enclosed x-ray chopper wheel8 Sep 2026US 12,730,081 B2Videray Technologies, Inc.
- Systems, devices, and methods for variable collimation of a neutron beam8 Sep 2026US 12,731,703 B2TAE Life Sciences, LLC
- X-ray chopper wheel assembly and method25 Aug 2026US 12,718,966 B2Viken Detection Corporation
- Method for generation of collimated attosecond gamma-ray radiation and electron-positron pair24 Sep 2026US 2026/0291163 A1The Extreme Light Infrastructure ERIC
- Collimator and methods of forming same10 Sep 2026US 2026/0269098 A1Smiths Detection Inc.
- Radiation source unit and measurement apparatus20 Aug 2026US 2026/0243562 A1Yokogawa Electric Corporation
- Neutron beam generation system for neutron capture therapy13 Aug 2026US 2026/0233031 A1Dawonmedax,. Ltd.
- Collimators for ultra-high dose rate radiation6 Aug 2026US 2026/0229381 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
- Method for scanning an examination subject with a CT device331US 6,320,929 B1Siemens Aktiengesellschaft · 2001
- Tetrahedron beam computed tomography318US 7,760,849 B2William Beaumont Hospital · 2010
- Mutileaf collimator for radiotherapy machines304US 4,868,844 AVarian Associates, Inc. · 1989