H01J 2201/2889
Characterised by material
H01J2201/2889 (Characterised by material) appears on 7 US grants and 8 published applications in this corpus.
Search patents in H01J- Granted patents
- 7
- Published applications
- 8
- Assignees
- 6
- Inventors
- 17
- Latest grant
- 25 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 3 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 2 | 3 |
| 2025 | 1 | 0 |
By publication year.
Recent patents
- Monolithic heater for thermionic electron cathode25 Feb 2025US 12,237,138 B2Applied Physics Technologies, Inc.
- Pincer mount cathode2 Jul 2024US 12,027,340 B2Kimball Physics, Inc.
- Monolithic heater for thermionic electron cathode2 Apr 2024US 11,948,769 B2Applied Physics Technologies, Inc.
- Magnetic immersion electron gun25 Apr 2023US 11,636,996 B2KLA Corporation
- Thermal-field type electron source composed of transition metal carbide material8 Nov 2016US 9,490,098 B1Applied Physics Technologies, Inc.
- Monolithic heater for thermionic electron cathode27 Jun 2024US 2024/0212964 A1Applied Physics Technologies, Inc.
- Pincer Mount Cathode16 May 2024US 2024/0161994 A1Kimball Physics, Inc.
- Monolithic heater for thermionic electron cathode15 Feb 2024US 2024/0055213 A1Applied Physics Technologies, Inc.
- Emitter for emitting charged particles18 May 2023US 2023/0154725 A1ASML Netherlands B. V.
- Magnetic immersion electron gun10 Mar 2022US 2022/0076914 A1KLA Corporation
Most cited
By later US patents
- Thermal-field type electron source composed of transition metal carbide material with artificial facet6US 9,240,301 B1Applied Physics Technologies, Inc. · 2016
- Tungsten wire, cathode heater and vibration service lamp filament2US 9,236,212 B2Kabushiki Kaisha Toshiba · 2016
- Thermal-field type electron source composed of transition metal carbide material2US 9,490,098 B1Applied Physics Technologies, Inc. · 2016
- Monolithic heater for thermionic electron cathode1US 11,948,769 B2Applied Physics Technologies, Inc. · 2024