Willem Meijndert Van Alphen

Person

People

Patents Grantslast 30 patents

Information Patent Grant
Cathode ray tube with narrowed neck portion
- Patent number 6,441,547
- Issue date Aug 27, 2002
- Koninklijke Philips Electronics N.V.
- Willem M. Van Alphen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Deflection unit for a cathode ray tube
- Patent number 6,373,181
- Issue date Apr 16, 2002
- U.S. Philips Corporation
- Nicolaas G. Vink
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode-ray tube with focussing structure and getter means
- Patent number 5,202,606
- Issue date Apr 13, 1993
- U.S. Philips Corporation
- Gerardus A. H. M. Vrijssen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube including a magnetic focusing lens
- Patent number 5,117,152
- Issue date May 26, 1992
- U.S. Philips Corporation
- Arne L. Duwaer
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Picture display device
- Patent number 4,988,928
- Issue date Jan 29, 1991
- U.S. Philips Corporation
- Gerardus A. H. M. Vrijssen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Picture display device
- Patent number 4,988,929
- Issue date Jan 29, 1991
- U.S. Philips Corporation
- Tjerk G. Spanjer
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Display tube including a helical focusing lens with a non-rotationa...
- Patent number 4,961,022
- Issue date Oct 2, 1990
- U.S. Philips Corporation
- Gerardus J. A. Hellings
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Projection television display tube with cooling means and display d...
- Patent number 4,899,080
- Issue date Feb 6, 1990
- U.S. Philips Corporation
- Leendert Vriens
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Liquid cooled display tube
- Patent number 4,734,613
- Issue date Mar 29, 1988
- U.S. Philips Corporation
- Gerritt B. Gerritsen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube including a channel plate electron multiplier
- Patent number 4,721,880
- Issue date Jan 26, 1988
- U.S. Philips Corporation
- John R. Mansell
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of de-burring and cleaning electrode systems
- Patent number 4,398,896
- Issue date Aug 16, 1983
- U.S. Philips Corporation
- Willem M. Van Alphen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Shadow mask each aperture of which is defined by a quadrupolar lens
- Patent number 4,059,781
- Issue date Nov 22, 1977
- U.S. Philips Corporation
- Willem Meijndert VAN Alphen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Device for displaying color television images
- Patent number 4,027,219
- Issue date May 31, 1977
- U.S. Philips Corporation
- Willem Meijndert Van Alphen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode-ray tube having electrostatic focusing and electrostatic de...
- Patent number 3,952,227
- Issue date Apr 20, 1976
- U.S. Philips Corporation
- Willem Meijndert Van Alphen
- H01 - BASIC ELECTRIC ELEMENTS

Willem Meijndert Van Alphen

Person

Patents Grantslast 30 patents

Cathode ray tube with narrowed neck portion

Deflection unit for a cathode ray tube

Cathode-ray tube with focussing structure and getter means

Cathode ray tube including a magnetic focusing lens

Picture display device

Picture display device

Display tube including a helical focusing lens with a non-rotationa...

Projection television display tube with cooling means and display d...

Liquid cooled display tube

Color cathode ray tube including a channel plate electron multiplier

Method of de-burring and cleaning electrode systems

Shadow mask each aperture of which is defined by a quadrupolar lens

Device for displaying color television images

Cathode-ray tube having electrostatic focusing and electrostatic de...