H01J 2203/0232
Characterised by the material
Official title: characterised by the material
H01J2203/0232 (Characterised by the material) appears on 17 US grants and 11 published applications in this corpus.
Search patents in H01J- Granted patents
- 17
- Published applications
- 11
- Assignees
- 9
- Inventors
- 32
- Latest grant
- 25 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 2 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 3 |
| 2016 | 0 | 1 |
| 2017 | 5 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Field emission cathode device and method of forming a field emission cathode device25 Feb 2025US 12,237,139 B2NCX Corporation
- Applications of graphene grids in vacuum electronics21 Aug 2018US 10,056,219 B2Elwha LLC
- Field-emission device with improved beams-convergence30 May 2017US 9,666,401 B2Electronics and Telecommunications Research Institute
- Electronic device multi-layer graphene grid23 May 2017US 9,659,734 B2Elwha LLC
- Applications of graphene grids in vacuum electronics23 May 2017US 9,659,735 B2Elwha LLC
- Field emission cathode device and method of forming a field emission cathode device21 Dec 2023US 2023/0411101 A1NCX Corporation
- Applications of Graphene Grids in Vacuum Electronics9 Nov 2017US 2017/0323755 A1Elwha LLC
- Field-emission device with improved beams-convergence26 May 2016US 2016/0148774 A1Electronics and Telecommunications Research Institute
- Applications of graphene grids in vacuum electronics27 Aug 2015US 2015/0243468 A1Elwha LLC
- Electronic device multi-layer graphene grid30 Jul 2015US 2015/0213992 A1Elwha LLC
Most cited
By later US patents
- Field emission displays with reduced light leakage9US 5,956,611 AMicron Technologies, Inc. · 1999
- Field emission cathode and field emission display employing with same6US 8,089,206 B2Hon Hai Precision Industry Co., Ltd. · 2012
- Field-emission device with improved beams-convergence6US 9,666,401 B2Electronics and Telecommunications Research Institute · 2017
- Transmission electron microscope grid and method for making same5US 8,623,227 B2Hon Hai Precision Industry Co., Ltd. · 2014
- Triodes using nanofabric articles and methods of making the same4US 8,115,187 B2Nantero, Inc. · 2012