patentgrepDocs Get an API key

H01J 17/063

Indirectly heated cathodes

Official title: {Indirectly heated cathodes, e.g. by the discharge itself}

H01J17/063 (Indirectly heated cathodes) appears on 13 US grants and 5 published applications in this corpus.

Search patents in H01J

Granted patents: 13
Published applications: 5
Assignees: 9
Inventors: 21
Latest grant: 3 Sep 2024

Filings by year

H01J 17/063: granted patents and published applications per publication year
Year	Granted patents	Published applications
1986	1	0
1987	0	0
1988	0	0
1989	0	0
1990	0	0
1991	1	0
1992	2	0
1993	0	0
1994	0	0
1995	3	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	0	0
2006	0	1
2007	2	0
2008	1	0
2009	0	0
2010	0	0
2011	0	0
2012	0	0
2013	0	1
2014	0	0
2015	0	0
2016	1	0
2017	0	0
2018	0	0
2019	0	0
2020	0	0
2021	0	1
2022	0	0
2023	0	0
2024	1	0

By publication year. Applications have been published since 2001.

Recent patents

Time-dependent plasma systems and methods for thermionic conversion3 Sep 2024US 12,081,145 B2Modern Hydrogen, Inc.
Motor drive add-on pre-charge capacitive module and method17 May 2016US 9,344,027 B2Rockwell Automation Technologies, Inc.
Indirectly heated electrode for gas discharge tube, gas discharge tube using said indirectly heated electrode, and lighting device for said gas discharge tube30 Sep 2008US 7,429,826 B2Hamamatsu Photonics K.K.
Indirectly heated electrode for gas discharge tube15 May 2007US 7,218,047 B2Hamamatsu Photonics K.K.
Indirectly heated electrode for gas discharge tube, gas discharge tube with this, and its operating device20 Mar 2007US 7,193,367 B2Hamamatsu Photonics K.K.

Most cited

By later US patents