David Steven Barratt

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Roosendale, GB

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Patents Grantslast 30 patents

Information Patent Grant
Cathode ray tube with a particle-particle cathode coating
- Patent number 7,019,450
- Issue date Mar 28, 2006
- Koninklijke Philips Electronics N.V.
- Georg Friedrich Gaertner
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Vacuum tube with oxide cathode
- Publication number 20060076871
- Publication date Apr 13, 2006
- KONINLIJKE PHILIPS ELECTRONICS N.V.
- George Gaertner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Oxide cathode
- Publication number 20060012283
- Publication date Jan 19, 2006
- L G PHILLIPS DISPLAYS NETHERLANDS BV
- David Steven Barratt
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Isahode ray tube having an oxide cathode
- Publication number 20020163308
- Publication date Nov 7, 2002
- Georg Friedrich Gaertner
- H01 - BASIC ELECTRIC ELEMENTS