G21K 5/00
Irradiation devices
Official title: Irradiation devices (discharge tubes for irradiating H01J37/00)
G21K5/00 (Irradiation devices) appears on 1,505 US grants and 1,442 published applications in this corpus.
Search patents in G21K- Granted patents
- 1,505
- Published applications
- 1,442
- Assignees
- 663
- Inventors
- 2,980
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 10 | 0 |
| 1978 | 9 | 0 |
| 1979 | 4 | 0 |
| 1980 | 8 | 0 |
| 1981 | 9 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 12 | 0 |
| 1985 | 6 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 10 | 0 |
| 1990 | 3 | 0 |
| 1991 | 13 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 15 | 0 |
| 1995 | 12 | 0 |
| 1996 | 20 | 0 |
| 1997 | 19 | 0 |
| 1998 | 16 | 0 |
| 1999 | 14 | 0 |
| 2000 | 12 | 0 |
| 2001 | 25 | 19 |
| 2002 | 25 | 32 |
| 2003 | 46 | 50 |
| 2004 | 46 | 47 |
| 2005 | 39 | 38 |
| 2006 | 38 | 36 |
| 2007 | 24 | 40 |
| 2008 | 27 | 27 |
| 2009 | 21 | 24 |
| 2010 | 26 | 32 |
| 2011 | 14 | 35 |
| 2012 | 30 | 44 |
| 2013 | 56 | 106 |
| 2014 | 93 | 116 |
| 2015 | 93 | 115 |
| 2016 | 86 | 79 |
| 2017 | 86 | 99 |
| 2018 | 72 | 77 |
| 2019 | 74 | 75 |
| 2020 | 82 | 82 |
| 2021 | 48 | 61 |
| 2022 | 60 | 52 |
| 2023 | 40 | 41 |
| 2024 | 48 | 54 |
| 2025 | 43 | 40 |
| 2026 | 23 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- RF source22 Sep 2026US 12,745,340 B2Elekta Limited
- Nuclear flux thimble irradiation target insertion and retrieval mechanism15 Sep 2026US 12,738,388 B2Westinghouse Electric Corp.
- Neutron capture therapy system and neutron generation part recovery method therefor25 Aug 2026US 12,714,882 B2Neuboron Therapy System Ltd.
- Fast-neutron flux radiating device with an improved support for a target of radiations and radiating method thereof25 Aug 2026US 12,718,964 B2ENEA - Agenzia nazionale per le nuove tecnologie, l’energia e lo sviluppo economico sostenibile
- Electron beam curing of clear and pigmented coatings for the coil industry and method thereof25 Aug 2026US 12,719,016 B2Energy Sciences Inc.
- Systems, devices, and methods for transport and storage of air-sensitive materials24 Sep 2026US 2026/0285561 A1Tae Technologies, Inc.
- Light source apparatus and control method of light source apparatus10 Sep 2026US 2026/0269099 A1Lasertec Corporation
- Sterilization of an object using low energy electron beam13 Aug 2026US 2026/0232852 A1Pharmalab India Pvt. Ltd.
- Sterilization of an object using low energy electron beam13 Aug 2026US 2026/0232853 A1Pharmalab India Pvt. Ltd.
- Neutron beam generation system for neutron capture therapy13 Aug 2026US 2026/0233031 A1Dawonmedax,. Ltd.
Most cited
By later US patents
- Integrated variable-aperture collimator and fixed-aperture collimator1,021US 8,093,572 B2Accuray Incorporated · 2012
- Apparatus and method providing substantially two-dimensionally uniform irradiation542US 6,649,921 B1Fusion UV Systems, Inc. · 2003
- Multi-station proton beam therapy system359US 4,870,287 ALoma Linda University Medical Center · 1989
- Radioactive beam irradiation method and apparatus taking movement of the irradiation area into consideration296US 5,538,494 AHitachi, Ltd. · 1996
- X-ray imaging particularly adapted for low Z materials241US 5,313,511 AAmerican Science and Engineering, Inc. · 1994