H01J 35/066
Details of electron optical components
Official title: {Details of electron optical components, e.g. cathode cups}
H01J35/066 (Details of electron optical components) appears on 252 US grants and 211 published applications in this corpus.
Search patents in H01J- Granted patents
- 252
- Published applications
- 211
- Assignees
- 95
- Inventors
- 444
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 1 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 5 | 1 |
| 2002 | 4 | 4 |
| 2003 | 5 | 3 |
| 2004 | 4 | 4 |
| 2005 | 0 | 5 |
| 2006 | 7 | 6 |
| 2007 | 5 | 5 |
| 2008 | 2 | 1 |
| 2009 | 4 | 5 |
| 2010 | 5 | 11 |
| 2011 | 6 | 7 |
| 2012 | 3 | 8 |
| 2013 | 7 | 6 |
| 2014 | 8 | 10 |
| 2015 | 4 | 13 |
| 2016 | 11 | 14 |
| 2017 | 13 | 14 |
| 2018 | 20 | 16 |
| 2019 | 8 | 7 |
| 2020 | 14 | 11 |
| 2021 | 13 | 14 |
| 2022 | 7 | 8 |
| 2023 | 9 | 9 |
| 2024 | 6 | 9 |
| 2025 | 12 | 10 |
| 2026 | 8 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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 with stable electron beam15 Sep 2026US 12,738,440 B2Moxtek, Inc.
- X-ray tube with a cooled gate electrode26 May 2026US 12,640,327 B2Siemens Healthineers AG
- Field emission X-ray source device21 Apr 2026US 12,609,262 B2VATECH Co., Ltd.
- X-ray devices with nanotube emitters and methods of forming8 Oct 2026US 2026/0311951 A1Varex Imaging Corporation
- Electron beam emission structure and field emission device3 Sep 2026US 2026/0260836 A1Meidensha Corporation
- System and method for cathode controlled anode impact temperature27 Aug 2026US 2026/0253830 A1GE Precision Healthcare LLC
- X-ray source with multiple grids2 Jul 2026US 2026/0190208 A1Varex Imaging Corporation
- X-ray tubes19 Feb 2026US 2026/0051452 A1
Most cited
By later US patents
- Miniature x-ray source178US 5,729,583 AThe United States of America as represented by the Secretary of Commerce · 1998
- X-ray tube electron beam formation and focusing173US 5,633,907 AGeneral Electric Company · 1997
- Emitter-cup cathode for high-emission x-ray tube146US 5,907,595 AGeneral Electric Company · 1999
- Cathode for high emission x-ray tube144US 6,785,359 B2GE Medical Systems Global Technology Company, LLC · 2004
- X-ray tubes136US 4,344,011 AHitachi, Ltd. · 1982