H01J 1/48
Characterised by the material
Official title: characterised by the material
H01J1/48 (Characterised by the material) appears on 20 US grants and 17 published applications in this corpus.
Search patents in H01J- Granted patents
- 20
- Published applications
- 17
- Assignees
- 16
- Inventors
- 51
- Latest grant
- 25 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 4 |
| 2016 | 1 | 1 |
| 2017 | 4 | 2 |
| 2018 | 2 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
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
- Field emission cathode structure for a field emission arrangement4 Aug 2020US 10,734,180 B2Lightlab Sweden AB
- Two-dimensional graphene cold cathode, anode, and grid22 Jan 2019US 10,186,394 B2Lockheed Martin Corporation
- Applications of graphene grids in vacuum electronics21 Aug 2018US 10,056,219 B2Elwha LLC
- Fabrication of nanoscale vacuum grid and electrode structure with high aspect ratio dielectric spacers between the grid and electrode17 Jul 2018US 10,026,822 B2Elwha LLC
- Additive manufacturing of an ion optical device3 Apr 2025US 2025/0112014 A1
- Field emission cathode device and method of forming a field emission cathode device21 Dec 2023US 2023/0411101 A1NCX Corporation
- A field emission cathode structure for a field emission arrangement21 May 2020US 2020/0161071 A1Lightlab Sweden AB
- Two-Dimensional Graphene Cold Cathode, Anode, and Grid11 Oct 2018US 2018/0294131 A1Lockheed Martin Corporation
- Two-Dimensional Graphene Cold Cathode, Anode, and Grid9 Nov 2017US 2017/0323754 A1Lockheed Martin Corporation
Most cited
By later US patents
- Electrodes, for example grid-like electrodes for use in electron tubes, and a method for manufacturing same17US 4,137,477 AU. S. Philips Corporation · 1979
- Grid-like electrode for electronic components and process for making same7US 4,469,984 A1984
- Dielectric guide for electron beam transport6US 4,079,285 ASimulation Physics, Inc. · 1978
- Fe-Ni based alloy6US 5,264,050 AKabushiki Kaisha Toshiba · 1993
- Composition for forming electroconductive pattern and process for producing the same6US 5,571,455 ADai Nippon Insatsu Kabushiki Kaisha · 1996