G21K 1/025
Using multiple collimators
Official title: {using multiple collimators, e.g. Bucky screens; other devices for eliminating undesired or dispersed radiation}
G21K1/025 (Using multiple collimators) appears on 780 US grants and 638 published applications in this corpus.
Search patents in G21K- Granted patents
- 780
- Published applications
- 638
- Assignees
- 327
- Inventors
- 1,461
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 5 | 0 |
| 1978 | 9 | 0 |
| 1979 | 3 | 0 |
| 1980 | 10 | 0 |
| 1981 | 8 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 13 | 0 |
| 1988 | 11 | 0 |
| 1989 | 15 | 0 |
| 1990 | 7 | 0 |
| 1991 | 1 | 0 |
| 1992 | 9 | 0 |
| 1993 | 13 | 0 |
| 1994 | 9 | 0 |
| 1995 | 10 | 0 |
| 1996 | 13 | 0 |
| 1997 | 13 | 0 |
| 1998 | 12 | 0 |
| 1999 | 6 | 0 |
| 2000 | 15 | 0 |
| 2001 | 14 | 1 |
| 2002 | 14 | 13 |
| 2003 | 10 | 22 |
| 2004 | 20 | 17 |
| 2005 | 16 | 24 |
| 2006 | 15 | 17 |
| 2007 | 14 | 21 |
| 2008 | 22 | 25 |
| 2009 | 21 | 23 |
| 2010 | 20 | 36 |
| 2011 | 13 | 40 |
| 2012 | 21 | 35 |
| 2013 | 21 | 29 |
| 2014 | 27 | 27 |
| 2015 | 33 | 34 |
| 2016 | 23 | 17 |
| 2017 | 28 | 29 |
| 2018 | 18 | 35 |
| 2019 | 27 | 31 |
| 2020 | 39 | 38 |
| 2021 | 34 | 29 |
| 2022 | 36 | 28 |
| 2023 | 22 | 29 |
| 2024 | 24 | 16 |
| 2025 | 18 | 13 |
| 2026 | 12 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Imaging system collimator for high energy and low energy isotopes29 Sep 2026US 12,749,590 B2GE Precision Healthcare LLC
- Systems, devices, and methods for variable collimation of a neutron beam8 Sep 2026US 12,731,703 B2TAE Life Sciences, LLC
- Systems and methods for beam shaping for large aspect ratio with a single cylindrical lens4 Aug 2026US 12,700,520 B2IonQ, Inc.
- Dynamic control of x-ray exposure using focal spot translation28 Jul 2026US 12,690,824 B2Mayo Foundation for Medical Education and Research
- Anti-scatter grid with an end stop element for stacked arrangement with a sensor element14 Jul 2026US 12,683,036 B2Siemens Healthineers AG
- Transport system for a very high energy electron (vhee) beam30 Jul 2026US 2026/0216535 A1Yeda Research and Development Co. Ltd.
- Microstructure for selective transmission of electromagnetic radiation30 Jul 2026US 2026/0221306 A1Koninklijke Philips N. V.
- Grating assembly for interferometric x-ray imaging23 Jul 2026US 2026/0213034 A1Koninklijke Philips N. V.
- Slice-shaped absorber mask for radiation therapy28 May 2026US 2026/0145004 A1Siemens Healthineers AG
- Slice-shaped scattered radiation mask28 May 2026US 2026/0148875 A1Siemens Healthineers AG
Most cited
By later US patents
- Tetrahedron beam computed tomography318US 7,760,849 B2William Beaumont Hospital · 2010
- Devices, methods, and systems involving castings203US 7,141,812 B2Mikro Systems, Inc. · 2006
- Tomographic imaging with concentric conical collimator201US 4,825,454 AAmerican Science and Engineering, Inc. · 1989
- System for inspecting the contents of a container188US 6,542,574 B2American Science and Engineering, Inc. · 2003
- Maneuverable and locateable catheters177US 5,651,047 ACardiac Mariners, Inc. · 1997