H01J 2235/20
Arrangements for controlling gases within the x-ray tube
Official title: Arrangements for controlling gases within the X-ray tube
H01J2235/20 (Arrangements for controlling gases within the x-ray tube) appears on 62 US grants and 60 published applications in this corpus.
Search patents in H01J- Granted patents
- 62
- Published applications
- 60
- Assignees
- 37
- Inventors
- 138
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 2 | 2 |
| 2007 | 3 | 0 |
| 2008 | 1 | 3 |
| 2009 | 1 | 1 |
| 2010 | 1 | 5 |
| 2011 | 3 | 4 |
| 2012 | 2 | 5 |
| 2013 | 4 | 1 |
| 2014 | 0 | 1 |
| 2015 | 3 | 2 |
| 2016 | 2 | 2 |
| 2017 | 2 | 5 |
| 2018 | 9 | 6 |
| 2019 | 1 | 1 |
| 2020 | 4 | 5 |
| 2021 | 7 | 3 |
| 2022 | 0 | 3 |
| 2023 | 4 | 1 |
| 2024 | 0 | 3 |
| 2025 | 0 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- X-ray tube22 Sep 2026US 12,744,177 B2Hamamatsu Photonics K.K.
- Modular getters and getters with different materials in vacuum enclosures31 Mar 2026US 12,592,354 B2Varex Imaging Corporation
- X-ray tube17 Mar 2026US 12,580,147 B2Hamamatsu Photonics K.K.
- On-chip miniature X-ray source and manufacturing method therefor24 Oct 2023US 11,798,772 B2Peking University
- X-ray tube liquid metal bearing structure for reducing trapped gases13 Jun 2023US 11,676,791 B2GE Precision Healthcare LLC
- X-ray tubes19 Feb 2026US 2026/0051452 A1
- Field emission x-ray source and systems with distributed gettering25 Dec 2025US 2025/0391626 A1Varex Imaging Corporation
- X-ray tube6 Nov 2025US 2025/0343020 A1Hamamatsu Photonics K.K.
- Modular getters and getters with different materials in vacuum enclosures29 Aug 2024US 2024/0290569 A1Varex Imaging Corporation
- X-ray tube15 Aug 2024US 2024/0274392 A1Hamamatsu Photonics K.K.
Most cited
By later US patents
- X-ray device having a dilation structure for delivering localized radiation to an interior of a body112US 6,095,966 AXRT Corp. · 2000
- Miniature x-ray source52US 6,134,300 AThe Regents of the University of California · 2000
- Ring tube x-ray source with active vacuum pumping36US 5,438,605 APicker International, Inc. · 1995
- Device for delivering localized x-ray radiation and method of manufacture22US 6,377,846 B1Medtronic AVE, Inc. · 2002
- Cathode structure with getter material and diamond film, and methods of manufacture thereof16US 6,465,954 B2Medtronic AVE, Inc. · 2002