H01J 2229/4803
Electrodes
H01J2229/4803 (Electrodes) appears on 42 US grants and 40 published applications in this corpus.
Search patents in H01J- Granted patents
- 42
- Published applications
- 40
- Assignees
- 27
- Inventors
- 109
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 1 | 1 |
| 2002 | 7 | 12 |
| 2003 | 9 | 5 |
| 2004 | 6 | 3 |
| 2005 | 3 | 3 |
| 2006 | 2 | 3 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 3 |
| 2016 | 2 | 1 |
| 2017 | 1 | 2 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 3 | 0 |
| 2021 | 0 | 2 |
| 2022 | 2 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Extraction grid24 Feb 2026US 12,562,331 B2BüHler Alzenau GmbH
- Extreme-ultraviolet light source device using electron beams21 Oct 2025US 12,451,316 B2Worldbeam Solution Co., Ltd.
- Precision alignment system for millimeter wave sources2 May 2023US 11,640,893 B1Dymenso LLC
- Field emission device24 May 2022US 11,342,153 B2Electronics and Telecommunications Research Institute
- Method of operating a charged particle gun, charged particle gun, and charged particle beam device25 Jan 2022US 11,232,924 B2ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH
- Extraction grid18 Jan 2024US 2024/0021399 A1BüHler Alzenau GmbH
- Precision Alignment System for Millimeter Wave Sources18 May 2023US 2023/0154717 A1Dymenso LLC
- Extreme-ultraviolet light source device using electron beams20 Apr 2023US 2023/0122253 A1University-Industry Cooperation Group of Kyung Hee University
- Field emission device30 Sep 2021US 2021/0305002 A1Electronics and Telecommunications Research Institute
- Method of operating a charged particle gun, charged particle gun, and charged particle beam device5 Aug 2021US 2021/0241990 A1ICT Integrated Circuit Testing Gesellschaft für Halbleiterprüftechnik mbH
Most cited
By later US patents
- X-ray tube5US 9,653,248 B2Toshiba Electron Tubes & Devices Co., Ltd. · 2017
- Electrode of electron gun and electron gun using the same4US 6,479,927 B1Samsung SDI.Co., Ltd. · 2002
- Color picture tube including an electron gun in a coated tube neck4US 6,559,586 B1Samsung Display Devices Co., Ltd. · 2003
- Cathode-ray tube apparatus4US 6,570,349 B2Kabushiki Kaisha Toshiba · 2003
- Cathode-ray tube apparatus3US 6,707,244 B2Kabushiki Kaisha Toshiba · 2004