Thermionic cathodes

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CPC
H01J19/04

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HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS H01J19/00Details of vacuum tubes of the types covered by group H01J21/00

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H01J19/04Thermionic cathodes

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Patents Grantslast 30 patents

Information Patent Grant
Printed active device with a 3D thermionic electronic component
- Patent number 10,483,074
- Issue date Nov 19, 2019
- British Telecommunications public limited company
- Robert Ghanea-Hercock
- B33 - ADDITIVE MANUFACTURING TECHNOLOGY
Information Patent Grant
Devices and methods for enhancing the collection of electrons
- Patent number 10,176,960
- Issue date Jan 8, 2019
- Elwha LLC
- Heinz Hermann Busta
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
X-ray generation from a super-critical field
- Patent number 10,172,223
- Issue date Jan 1, 2019
- X-Illumina, Inc.
- Steven D. Hansen
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of manufacturing an article with integral active electronic...
- Patent number 9,905,389
- Issue date Feb 27, 2018
- British Telecommunications public limited company
- Robert Ghanea-Hercock
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Rugged quick-heating electron tubes
- Patent number 4,107,566
- Issue date Aug 15, 1978
- The United States of America as represented by the Secretaru of the Army
- Charles P. Marsden
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
DEVICES AND METHODS FOR ENHANCING THE COLLECTION OF ELECTRONS
- Publication number 20180294133
- Publication date Oct 11, 2018
- Elwha LLC
- Heinz Hermann Busta
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PRINTED ACTIVE DEVICE
- Publication number 20170345610
- Publication date Nov 30, 2017
- British Telecommunications public limited company
- Robert GHANEA-HERCOCK
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
X-RAY GENERATION FROM A SUPER-CRITICAL FIELD
- Publication number 20170156197
- Publication date Jun 1, 2017
- X-Illumina, Inc.
- Steven D. Hansen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PRINTED ACTIVE DEVICE
- Publication number 20150270089
- Publication date Sep 24, 2015
- British Telecommunications public limited company
- Robert GHANEA-HERCOCK
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...