H01J 2201/306
Ferroelectric cathodes
H01J2201/306 (Ferroelectric cathodes) appears on 23 US grants and 20 published applications in this corpus.
Search patents in H01J- Granted patents
- 23
- Published applications
- 20
- Assignees
- 20
- Inventors
- 63
- Latest grant
- 28 Jul 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 2 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 6 |
| 2007 | 1 | 4 |
| 2008 | 1 | 3 |
| 2009 | 3 | 0 |
| 2010 | 2 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods and devices for producing an electron beam28 Jul 2020US 10,727,022 B2Ariel Scientific Innovations Ltd.
- Ferroelectric emitter for electron beam emission and radiation generation9 May 2017US 9,646,797 B2Ariel-University Research and Development Company Ltd.
- Method of forming pointed structures3 May 2011US 7,935,297 B2The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- Electron emission source, electron emission device using the same, and composition for the same14 Sep 2010US 7,795,794 B2Samsung SDI.Co., Ltd.
- High energy crystal generators and their applications22 Jun 2010US 7,741,615 B2The Regents of the University of California
- Inverted plasma source, and method13 Mar 2025US 2025/0087457 A1MKS Instruments, Inc.
- Methods and devices for producing an electron beam5 Sep 2019US 2019/0272968 A1Ariel Scientific Innovations Ltd.
- Ferroelectric emitter for electron beam emission and radiation generation26 May 2016US 2016/0148773 A1Ariel-University Research and Development Company Ltd.
- High Energy Crystal Generators And Their Applications16 Oct 2008US 2008/0251735 A1The Regents of the University of California
- Field emitter and method of operating the same4 Sep 2008US 2008/0211375 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- X-ray catheter54US 6,799,075 B1Medtronic AVE, Inc. · 2004
- Display system utilizing electron emission by polarization reversal of ferroelectric material53US 5,631,664 AOlympus Optical Co., Ltd. · 1997
- Ferroelectric flat panel displays53US 6,198,225 B1Matsushita Electronics Corporation · 2001
- Thin film ferroelectric flat panel display devices, and methods for operating and fabricating same35US 5,453,661 AMcnc · 1995
- Ferroelectric cold cathode31US 5,747,926 AKabushiki Kaisha Toshiba · 1998