H01J 2201/193
Thin film cathodes
H01J2201/193 (Thin film cathodes) appears on 4 US grants and 2 published applications in this corpus.
Search patents in H01J- Granted patents
- 4
- Published applications
- 2
- Assignees
- 4
- Inventors
- 11
- Latest grant
- 25 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Laminate, electron source and electronic device containing laminate, and production method and cleaning method for laminate25 Feb 2025US 12,237,141 B2National Institute for Materials Science
- Cathode structure for cathode ray tube10 Dec 2002US 6,492,765 B1Matsushita Electric Industrial Co., Ltd.
- Thermionic emitter with balancing thermal conduction legs30 Jul 2002US 6,426,587 B1Siemens Aktiengesellschaft
- Display device based on indirectly heated thermionic cathodes3 Nov 1998US 5,831,382 A
- Cathode assemblies, methods for adjusting focal points of x-rays, and methods for controlling focused electron beams27 Mar 2025US 2025/0104957 A1Wuhan United Imaging Healthcare Co., Ltd.
- Laminate, electron source and electronic device containing laminate, and production method and cleaning method for laminate28 Nov 2024US 2024/0395494 A1National Institute for Materials Science
Most cited
By later US patents