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Pieter Hokkeling
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Eindhoven, NL
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last 30 patents
Information
Patent Grant
Method of manufacturing scandate cathode with scandium oxide film
Patent number
5,064,397
Issue date
Nov 12, 1991
U.S. Philips Corporation
Jan Hasker
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
X-ray tube having a rotary anode with rhenium-containing bearing su...
Patent number
4,856,039
Issue date
Aug 8, 1989
U.S. Philips Corporation
Cornelius D. Roelandse
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Method of manufacturing a scandate dispenser cathode and dispenser...
Patent number
4,594,220
Issue date
Jun 10, 1986
U.S. Philips Corporation
Jan Hasker
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
X-ray tube for generating soft X-rays
Patent number
4,583,243
Issue date
Apr 15, 1986
U.S. Philips Corporation
Willem H. Diemer
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Electric lamp
Patent number
4,236,045
Issue date
Nov 25, 1980
U.S. Philips Corporation
Roger J. Q. Van den Plas
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electric lamp with tin or lead alloy plug for lead-in
Patent number
4,208,607
Issue date
Jun 17, 1980
U.S. Philips Corporation
Pieter Hokkeling
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Low-pressure mercury vapor discharge lamp with indium-bismuth-mercu...
Patent number
4,157,485
Issue date
Jun 5, 1979
U.S. Philips Corporation
Gustaaf A. Wesselink
H01 - BASIC ELECTRIC ELEMENTS