H01J 2223/02
Electrodes
Official title: Electrodes; Magnetic control means; Screens
H01J2223/02 (Electrodes) appears on 31 US grants and 11 published applications in this corpus.
Search patents in H01J- Granted patents
- 31
- Published applications
- 11
- Assignees
- 24
- Inventors
- 79
- Latest grant
- 2 May 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 3 |
| 2003 | 3 | 2 |
| 2004 | 2 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01J 2223/04CathodesIndexing code11
- H01J 2223/027CollectorsIndexing code9
- H01J 2223/08Focusing arrangementsIndexing code6
- H01J 2223/06Electron or ion gunsIndexing code5
- H01J 2223/10Magnet systems for directing or deflecting the discharge along a desired pathIndexing code1
- H01J 2223/11Means for reducing noiseIndexing code1
- H01J 2223/09Electric system for directing or deflecting the discharge along a desired pathIndexing code0
Recent patents
- Precision alignment system for millimeter wave sources2 May 2023US 11,640,893 B1Dymenso LLC
- Time-of-flight mass spectrometry device7 Dec 2021US 11,195,707 B2Shimadzu Corporation
- Field-emission cathode, with optical control11 Oct 2011US 8,035,295 B2Thales
- Collector arrangement12 Jun 2007US 7,230,385 B2E2V Technologies (UK) Limited
- Transducer with field emitter array18 Jan 2005US 6,844,860 B2
- Tungsten alloy wire, preparation method therefor and use thereof, and tungsten carbide alloy filament13 Aug 2026US 2026/0234761 A1Xiamen Honglu Tungsten Molybdenum Industry Co., Ltd.
- Precision Alignment System for Millimeter Wave Sources18 May 2023US 2023/0154717 A1Dymenso LLC
- Time-of-flight mass spectrometry device1 Jul 2021US 2021/0202224 A1Shimadzu Corporation
- Field-emission cathode, with optical control22 Oct 2009US 2009/0261727 A1Thales
- Collector arrangement14 Dec 2006US 2006/0279219 A1E2V Technologies (UK) Limited
Most cited
By later US patents
- Article comprising aligned nanowires172US 6,741,019 B1Agere Systems Inc. · 2004
- Process for fabricating article comprising aligned truncated carbon nanotubes139US 6,283,812 B1Agere Systems Guardian Corp. · 2001
- Field-emission cathode capable of forming an electron beam having a high current density and a low ripple25US 5,929,557 ANEC Corporation · 1999
- Electron orbit control in a betatron15US 5,319,314 ASchlumberger Technology Corporation · 1994
- Continuous wave electron-beam accelerator and continuous wave electron-beam accelerating method thereof12US 6,559,610 B2Mitsubishi Denki Kabushiki Kaisha · 2003