H01J 2235/1212
Of the cathode
Official title: of the cathode
H01J2235/1212 (Of the cathode) appears on 19 US grants and 21 published applications in this corpus.
Search patents in H01J- Granted patents
- 19
- Published applications
- 21
- Assignees
- 15
- Inventors
- 52
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 3 |
| 2015 | 1 | 0 |
| 2016 | 2 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 1 |
| 2022 | 2 | 2 |
| 2023 | 0 | 1 |
| 2024 | 1 | 3 |
| 2025 | 4 | 0 |
| 2026 | 1 | 3 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- X-ray tube with a cooled gate electrode26 May 2026US 12,640,327 B2Siemens Healthineers AG
- X-ray cathode shield7 Oct 2025US 12,437,957 B2GE Precision Healthcare LLC
- X-ray cathode shield30 Sep 2025US 12,431,318 B2GE Precision Healthcare LLC
- Systems and methods for controlling thermal conduction in X-ray tube cathodes29 Apr 2025US 12,285,906 B2GE Precision Healthcare LLC
- Biased cathode assembly of an X-ray tube with improved thermal management and a method of manufacturing same18 Feb 2025US 12,230,494 B2GE Precision Healthcare LLC
- X-ray cathode shield8 Jan 2026US 2026/0011523 A1GE Precision Healthcare LLC
- X-ray tube with a cooled gate electrode1 Jan 2026US 2026/0004988 A1Siemens Healthineers AG
- X-ray cathode shield1 Jan 2026US 2026/0004989 A1GE Precision Healthcare LLC
- X-ray cathode shield10 Oct 2024US 2024/0339284 A1GE Precision Healthcare LLC
- X-ray cathode shield10 Oct 2024US 2024/0339285 A1GE Precision Healthcare LLC
Most cited
By later US patents
- High thermal performance cathode via heat pipes9US 6,252,937 B1General Electric Company · 2001
- Device for generation of x-ray radiation with a cold electron source7US 7,388,944 B2Siemens Aktiengesellschaft · 2008
- X-ray tube cooling by emissive heat transfer7US 9,177,754 B2Varian Medical Systems, Inc. · 2015
- Cryogenic x-ray source device6US 7,027,560 B2Nucletron B. V. · 2006
- Filament assembly having reduced electron beam time constant5US 7,539,286 B1Varian Medical Systems, Inc. · 2009