H01J 2235/168
Against charged particles
Official title: against charged particles
H01J2235/168 (Against charged particles) appears on 100 US grants and 102 published applications in this corpus.
Search patents in H01J- Granted patents
- 100
- Published applications
- 102
- Assignees
- 53
- Inventors
- 193
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 3 |
| 2007 | 3 | 4 |
| 2008 | 3 | 1 |
| 2009 | 0 | 7 |
| 2010 | 4 | 5 |
| 2011 | 6 | 7 |
| 2012 | 7 | 9 |
| 2013 | 1 | 5 |
| 2014 | 3 | 11 |
| 2015 | 9 | 5 |
| 2016 | 8 | 4 |
| 2017 | 6 | 2 |
| 2018 | 2 | 5 |
| 2019 | 4 | 5 |
| 2020 | 4 | 3 |
| 2021 | 5 | 6 |
| 2022 | 3 | 5 |
| 2023 | 4 | 3 |
| 2024 | 2 | 5 |
| 2025 | 1 | 4 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- X-ray tube2 Jun 2026US 12,646,677 B2Canon Electron Tubes & Devices Co., Ltd.
- Mounted planar filament31 Mar 2026US 12,592,355 B2Moxtek, Inc.
- X-ray tube having at least one electrically conductive housing section17 Feb 2026US 12,555,735 B2Siemens Healthineers AG
- Anodes, cooling systems, and x-ray sources including the same15 Jul 2025US 12,362,127 B2Varex Imaging Corporation
- X-ray machine13 Feb 2024US 11,901,153 B2PCT Ebeam and Integration, LLC
- Monochromatic x-ray system and methods for high power operation26 Mar 2026US 2026/0088241 A1Imagine Scientific, Inc.
- X-ray tubes19 Feb 2026US 2026/0051452 A1
- X-ray source13 Nov 2025US 2025/0349487 A1VATECH Co., Ltd.
- Anodes, cooling systems, and x-ray sources including the same2 Oct 2025US 2025/0308831 A1Varex Imaging Corporation
- Mounted planar filament6 Mar 2025US 2025/0079108 A1Moxtek, Inc.
Most cited
By later US patents
- Filter apparatus for use with an x-ray source88US 4,837,794 AMaxwell Laboratories, Inc. · 1989
- X-Ray tube73US 4,468,802 ASiemens Aktiengesellschaft · 1984
- X-ray tube window heat shield73US 6,005,918 APicker International, Inc. · 1999
- X-ray tube66US 5,511,104 ASiemens Aktiengesellschaft · 1996
- X-ray tube having reduced window heating61US 5,987,097 AGeneral Electric Company · 1999