H01J 1/46
Control electrodes
Official title: Control electrodes, e.g. grid (for igniting arrangements H01J7/30); Auxiliary electrodes (auxiliary anodes for maintaining a discharge H01J1/36)
H01J1/46 (Control electrodes) appears on 75 US grants and 62 published applications in this corpus.
Search patents in H01J- Granted patents
- 75
- Published applications
- 62
- Assignees
- 57
- Inventors
- 190
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 3 |
| 2004 | 1 | 4 |
| 2005 | 2 | 2 |
| 2006 | 1 | 2 |
| 2007 | 0 | 4 |
| 2008 | 2 | 0 |
| 2009 | 0 | 3 |
| 2010 | 1 | 1 |
| 2011 | 3 | 1 |
| 2012 | 3 | 2 |
| 2013 | 0 | 7 |
| 2014 | 5 | 1 |
| 2015 | 3 | 4 |
| 2016 | 1 | 1 |
| 2017 | 4 | 4 |
| 2018 | 3 | 1 |
| 2019 | 2 | 3 |
| 2020 | 5 | 3 |
| 2021 | 2 | 2 |
| 2022 | 2 | 0 |
| 2023 | 0 | 7 |
| 2024 | 3 | 3 |
| 2025 | 5 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electron gun using virtual source method23 Jun 2026US 12,665,154 B2Korea Research Institute of Standards and Science
- Charged particle optics components and their fabrication13 Jan 2026US 12,525,422 B2FEI Company
- Method for amplifying electromagnetic waves with wirebonded triode23 Dec 2025US 12,505,971 B2
- Charged particle gun and charged particle beam system11 Nov 2025US 12,469,664 B2Hitachi High-Tech Corporation
- Extreme-ultraviolet light source device using electron beams21 Oct 2025US 12,451,316 B2Worldbeam Solution Co., Ltd.
- Gridded cathode apparatuses and x-ray systems8 Jan 2026US 2026/0011522 A1Varex Imaging Corporation
- Additive manufacturing of an ion optical device3 Apr 2025US 2025/0112014 A1
- Electron gun using virtual source method20 Mar 2025US 2025/0095944 A1Korea Research Institute of Standards and Science
- Method for amplifying electromagnetic waves with wirebonded triode16 May 2024US 2024/0161995 A1
- Field emission cathode device and method of forming a field emission cathode device7 Mar 2024US 2024/0079196 A1NCX Corporation
Most cited
By later US patents
- Electrode of electrostatic lens and method of manufacturing the same32US 8,963,099 B2Canon Kabushiki Kaisha · 2015
- Mesh structure and field-emission electron source apparatus using the same19US 7,825,591 B2Panasonic Corporation · 2010
- Electrodes, for example grid-like electrodes for use in electron tubes, and a method for manufacturing same17US 4,137,477 AU. S. Philips Corporation · 1979
- Gridded electron gun16US 4,737,680 ALitton Systems, Inc. · 1988
- Grid coating for thermionic electron emission suppression13US 4,263,528 AVarian Associates, Inc. · 1981