H01J 2201/30423
Microengineered edge emitters
H01J2201/30423 (Microengineered edge emitters) appears on 55 US grants and 32 published applications in this corpus.
Search patents in H01J- Granted patents
- 55
- Published applications
- 32
- Assignees
- 30
- Inventors
- 114
- Latest grant
- 21 Jul 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 13 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 2 |
| 2003 | 4 | 3 |
| 2004 | 2 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 7 |
| 2011 | 1 | 6 |
| 2012 | 4 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 3 |
| 2016 | 3 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Vacuum electron tube with planar cathode based on nanotubes or nanowires21 Jul 2020US 10,720,298 B2Thales
- Field emission devices and methods of manufacturing emitters thereof19 Jul 2016US 9,396,901 B2Kumoh National Institute of Technology Industry-Academic Cooperation Foundation
- Low voltage nanoscale vacuum electronic devices3 May 2016US 9,331,189 B2University of Pittsburgh—Of the Commonwealth System of Higher Education
- Method of making field emitter2 Feb 2016US 9,251,989 B2Hon Hai Precision Industry Co., Ltd.
- Method of fabricating electron-emitting device and method of manufacturing image display apparatus5 Mar 2013US 8,388,400 B2Canon Kabushiki Kaisha
- Vacuum electron tube with planar cathode based on nanotubes or nanowires11 Jan 2018US 2018/0012723 A1Thales
- Low voltage nanoscale vacuum electronic devices7 Jul 2016US 2016/0196948 A1University of Pittsburgh—Of the Commonwealth System of Higher Education
- Method of making field emitter17 Dec 2015US 2015/0364287 A1Hon Hai Precision Industry Co., Ltd.
- Field emission devices and methods of manufacturing gate electrodes thereof5 Mar 2015US 2015/0060757 A1Kumoh National Institute of Technology
- Field emission devices and methods of manufacturing emitters thereof5 Mar 2015US 2015/0060758 A1Kumoh National Institute of Technology - Academic Cooperation Foundation
Most cited
By later US patents
- Field emission cathode having an electrically conducting material shaped of a narrow rod or knife edge128US 5,773,921 A1998
- Thin-film edge field emitter device and method of manufacture therefor36US 5,382,185 AThe United States of America as represented by the Secretary of the Navy · 1995
- Direct electron injection field-emission display device26US 5,644,190 AAdvanced Vision Technologies, Inc. · 1997
- Method of fabricating edge type field emission element26US 6,135,839 ASony Corporation · 2000
- Method for manufacturing field emission display device19US 5,769,679 AElectronics and Telecommunications Research Institute · 1998