Petrus Arthur Marie Van Der Heide

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Clitheroe, GB

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Patents Grantslast 30 patents

Information Patent Grant
Cathode ray tube comprising a cathode of a composite material
- Patent number 6,833,659
- Issue date Dec 21, 2004
- Koninklijke Philips Electronics N.V.
- Georg Friedrich Gaertner
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

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
Information Patent Application
Cathode ray tube comprising a cathode of a composite material
- Publication number 20020074921
- Publication date Jun 20, 2002
- Georg Friedrich Gaertner
- H01 - BASIC ELECTRIC ELEMENTS