H01J 2201/30457
Diamond
H01J2201/30457 (Diamond) appears on 207 US grants and 54 published applications in this corpus.
Search patents in H01J- Granted patents
- 207
- Published applications
- 54
- Assignees
- 79
- Inventors
- 264
- Latest grant
- 16 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 10 | 0 |
| 1995 | 8 | 0 |
| 1996 | 21 | 0 |
| 1997 | 26 | 0 |
| 1998 | 29 | 0 |
| 1999 | 20 | 0 |
| 2000 | 11 | 0 |
| 2001 | 11 | 2 |
| 2002 | 5 | 6 |
| 2003 | 9 | 7 |
| 2004 | 7 | 9 |
| 2005 | 3 | 4 |
| 2006 | 2 | 5 |
| 2007 | 7 | 2 |
| 2008 | 2 | 3 |
| 2009 | 1 | 4 |
| 2010 | 2 | 2 |
| 2011 | 3 | 0 |
| 2012 | 3 | 2 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 2 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Passive and active diamond-based electron emitters and ionizers16 Jan 2024US 11,875,964 B2Physical Sciences, Inc.
- Diamond semiconductor device18 May 2021US 11,011,605 B2Evince Technology Limited
- Two-dimensional graphene cold cathode, anode, and grid22 Jan 2019US 10,186,394 B2Lockheed Martin Corporation
- Two-dimensional graphene cold cathode, anode, and grid31 Oct 2017US 9,805,900 B1Lockheed Martin Corporation
- Planar field emitters and high efficiency photocathodes based on ultrananocrystalline diamond16 Aug 2016US 9,418,814 B2Uchicago Argonne, LLC
- Electron source, plasma source and switch device23 Nov 2023US 2023/0377828 A1Kabushiki Kaisha Toshiba
- Passive and active diamond-based electron emitters and ionizers5 Jan 2023US 2023/0005694 A1Physical Sciences, Inc.
- Passive and active diamond-based electron emitters and ionizers3 Feb 2022US 2022/0037104 A1Physical Sciences, Inc.
- Diamond Semiconductor Device23 Jan 2020US 2020/0027683 A1Evince Technology Limited
- Two-Dimensional Graphene Cold Cathode, Anode, and Grid11 Oct 2018US 2018/0294131 A1Lockheed Martin Corporation
Most cited
By later US patents
- Method of making a molded field emission electron emitter employing a diamond coating144US 5,129,850 AMotorola, Inc. · 1992
- Method of manufacturing thin-film field-emission electron source141US 3,998,678 AHitachi, Ltd. · 1976
- Microcasting of microminiature tips139US 4,916,002 AThe Board of Trustees of the Leland Jr. University · 1990
- Method of forming field emitter device with diamond emission tips123US 5,199,918 AMicroelectronics and Computer Technology Corporation · 1993
- Electron-emitting devices having variously constituted electron-emissive elements, including cones or pedestals115US 5,559,389 ASilicon Video Corporation · 1996