H01J 2235/00
X-ray tubes
H01J2235/00 (X-ray tubes) appears on 1,859 US grants and 1,716 published applications in this corpus.
Search patents in H01J- Granted patents
- 1,859
- Published applications
- 1,716
- Assignees
- 512
- Inventors
- 2,690
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 6 | 0 |
| 1978 | 11 | 0 |
| 1979 | 3 | 0 |
| 1980 | 9 | 0 |
| 1981 | 4 | 0 |
| 1982 | 10 | 0 |
| 1983 | 6 | 0 |
| 1984 | 7 | 0 |
| 1985 | 8 | 0 |
| 1986 | 7 | 0 |
| 1987 | 15 | 0 |
| 1988 | 6 | 0 |
| 1989 | 14 | 0 |
| 1990 | 17 | 0 |
| 1991 | 10 | 0 |
| 1992 | 21 | 0 |
| 1993 | 23 | 0 |
| 1994 | 9 | 0 |
| 1995 | 14 | 0 |
| 1996 | 25 | 0 |
| 1997 | 26 | 0 |
| 1998 | 21 | 0 |
| 1999 | 21 | 0 |
| 2000 | 34 | 0 |
| 2001 | 35 | 10 |
| 2002 | 59 | 37 |
| 2003 | 38 | 23 |
| 2004 | 21 | 41 |
| 2005 | 20 | 53 |
| 2006 | 51 | 52 |
| 2007 | 52 | 73 |
| 2008 | 60 | 63 |
| 2009 | 49 | 79 |
| 2010 | 73 | 114 |
| 2011 | 63 | 81 |
| 2012 | 67 | 79 |
| 2013 | 53 | 72 |
| 2014 | 45 | 84 |
| 2015 | 76 | 105 |
| 2016 | 86 | 69 |
| 2017 | 80 | 57 |
| 2018 | 63 | 72 |
| 2019 | 75 | 75 |
| 2020 | 94 | 83 |
| 2021 | 84 | 87 |
| 2022 | 60 | 68 |
| 2023 | 65 | 66 |
| 2024 | 52 | 69 |
| 2025 | 60 | 65 |
| 2026 | 46 | 39 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01J 2235/08Targets and x-ray convertersIndexing code620
- H01J 2235/12CoolingIndexing code482
- H01J 2235/06Cathode assemblyIndexing code428
- H01J 2235/16VesselsIndexing code373
- H01J 2235/10Drive means for anode substrateIndexing code333
- H01J 2235/18WindowsIndexing code111
- H01J 2235/02Electrical arrangementsIndexing code101
- H01J 2235/20Arrangements for controlling gases within the x-ray tubeIndexing code62
Recent patents
- Patterned X-ray emitting target29 Sep 2026US 12,749,642 B2Nova Measuring Instruments Ltd.
- Method and arrangement for an X-ray source29 Sep 2026US 12,750,938 B2Excillum AB
- X-ray tube22 Sep 2026US 12,744,177 B2Hamamatsu Photonics K.K.
- X-ray tube device and x-ray CT apparatus22 Sep 2026US 12,745,339 B2FUJIFILM Healthcare Corporation
- Forced oil circulation in X-ray tube without external hoses1 Sep 2026US 12,725,753 B2GE Precision Healthcare LLC
- X-ray devices with nanotube emitters and methods of forming8 Oct 2026US 2026/0311951 A1Varex Imaging Corporation
- Improvements in and relating to x-ray sources8 Oct 2026US 2026/0311952 A1Kratos Analytical Limited
- Vacuum enclosures and x-ray sources including vacuum enclosures with multiple sealable openings24 Sep 2026US 2026/0290738 A1Varex Imaging Corporation
- Surface treatment method, stainless steel component, x-ray tube, x-ray tube device, manufacturing method of stainless steel component, and manufacturing method of x-ray tube10 Sep 2026US 2026/0269166 A1FUJIFILM Corporation
- Radiation window, encapsulation and method for producing an encapsulation3 Sep 2026US 2026/0260837 A1KETEK GmbH Halbleiter- und Reinraumtechnik
Most cited
By later US patents
- Tetrahedron beam computed tomography318US 7,760,849 B2William Beaumont Hospital · 2010
- X-ray generating mechanism using electron field emission cathode190US 6,553,096 B1University of North Carolina - Chapel Hill · 2003
- X-ray generator174US 6,188,747 B1Heimann Systems GmbH · 2001
- X-ray generator150US 6,282,263 B1Bede Scientific Instruments Limited · 2001
- X-ray tubes136US 4,344,011 AHitachi, Ltd. · 1982