Leendert Vriens

Person

BA Eindhoven, NL

People

Patents Grantslast 30 patents

Information Patent Grant
Video moire reduction
- Patent number 6,239,772
- Issue date May 29, 2001
- U.S. Philips Corporation
- Christaan Hentschel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cathode ray tube, display system incorporating same and computer in...
- Patent number 5,841,247
- Issue date Nov 24, 1998
- U.S. Philips Corporation
- Leendert Vriens
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Color cathrode ray tube and display device
- Patent number 5,825,435
- Issue date Oct 20, 1998
- U.S. Philips Corporation
- Leendert Vriens
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
UV/blue LED-phosphor device with short wave pass, long wave pass ba...
- Patent number 5,813,752
- Issue date Sep 29, 1998
- Philips Electronics North America Corporation
- Barry Singer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
UV/blue led-phosphor device with efficient conversion of UV/blues l...
- Patent number 5,813,753
- Issue date Sep 29, 1998
- Philips Electronics North America Corporation
- Leendert Vriens
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Display device having a display window
- Patent number 5,698,939
- Issue date Dec 16, 1997
- U.S. Philips Corporation
- Leendert Vriens
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube and display device with reduced moire
- Patent number 5,619,094
- Issue date Apr 8, 1997
- U.S. Philips Corporation
- Leendert Vriens
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color picture tube with reduced raster distortion and flat appearin...
- Patent number 5,319,280
- Issue date Jun 7, 1994
- U.S. Philips Corporation
- Leendert Vriens
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of vapor depositing an interference filter layer on the insi...
- Patent number 5,209,690
- Issue date May 11, 1993
- U.S. Philips Corporation
- Leendert Vriens
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Television projection system having frame with integral cooling
- Patent number 5,179,312
- Issue date Jan 12, 1993
- U.S. Philips Corporation
- Leendert Vriens
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Display tube having improved brightness distribution
- Patent number RE34131
- Issue date Nov 24, 1992
- U.S. Philips Corporation
- Leendert Vriens
- 313 - Electric lamp and discharge devices
Information Patent Grant
Shadow mask color display tube
- Patent number 5,099,169
- Issue date Mar 24, 1992
- U.S. Philips Corporation
- Leendert Vriens
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube having multilayer interference filter
- Patent number 5,068,568
- Issue date Nov 26, 1991
- U.S. Philips Corporation
- Henricus M. de Vrieze
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Projection television display device
- Patent number 5,061,993
- Issue date Oct 29, 1991
- U.S. Philips Corporation
- Leendert Vriens
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Color cathode ray tube having interference filter with different pa...
- Patent number 4,990,824
- Issue date Feb 5, 1991
- U.S. Philips Corporation
- Leendert Vriens
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Picture display device using scan direction transposition
- Patent number 4,989,092
- Issue date Jan 29, 1991
- U.S. Philips Corporation
- Terence Doyle
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device for inspecting an interference filter for a projection telev...
- Patent number 4,988,203
- Issue date Jan 29, 1991
- U.S. Philips Corporation
- Leendert Vriens
- G01 - MEASURING TESTING
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
Projection device and associated electro-optic monochrome display d...
- Patent number 4,882,617
- Issue date Nov 21, 1989
- U.S. Philips Corporation
- Leendert Vriens
- G02 - OPTICS
Information Patent Grant
Electro-optic color display including luminescent layer and interfe...
- Patent number 4,822,144
- Issue date Apr 18, 1989
- U.S. Philips Corporation
- Leendert Vriens
- G02 - OPTICS
Information Patent Grant
Three tube color projection television system having multispot blue...
- Patent number 4,807,014
- Issue date Feb 21, 1989
- U.S. Philips Corporation
- Aart A. Van Gorkum
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Display tube having improved brightness distribution
- Patent number 4,804,884
- Issue date Feb 14, 1989
- U.S. Philips Corporation
- Leendert Vriens
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Rear projection screen and rear projection system provided with suc...
- Patent number 4,762,393
- Issue date Aug 9, 1988
- U.S. Philips Corporation
- Gerrit B. Gerritsen
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection television display tube and device having interference f...
- Patent number 4,683,398
- Issue date Jul 28, 1987
- U.S. Philips Corporation
- Leendert Vriens
- G02 - OPTICS
Information Patent Grant
Display tube having a display window with an interference filter
- Patent number 4,647,812
- Issue date Mar 3, 1987
- U.S. Philips Corporation
- Leendert Vriens
- G02 - OPTICS
Information Patent Grant
Display tube provided with an interference filter
- Patent number 4,634,926
- Issue date Jan 6, 1987
- U.S. Philips Corporation
- Leendert Vriens
- G02 - OPTICS
Information Patent Grant
Optical recording disc
- Patent number 4,606,017
- Issue date Aug 12, 1986
- U.S. Philips Corporation
- Dirk J. Broer
- G11 - INFORMATION STORAGE
Information Patent Grant
Gas discharge laser
- Patent number 4,152,673
- Issue date May 1, 1979
- U.S. Philips Corporation
- Robertus A. J. Keijser
- H01 - BASIC ELECTRIC ELEMENTS

Leendert Vriens

Person

Patents Grantslast 30 patents

Video moire reduction

Cathode ray tube, display system incorporating same and computer in...

Color cathrode ray tube and display device

UV/blue LED-phosphor device with short wave pass, long wave pass ba...

UV/blue led-phosphor device with efficient conversion of UV/blues l...

Display device having a display window

Color cathode ray tube and display device with reduced moire

Color picture tube with reduced raster distortion and flat appearin...

Method of vapor depositing an interference filter layer on the insi...

Television projection system having frame with integral cooling

Display tube having improved brightness distribution

Shadow mask color display tube

Cathode ray tube having multilayer interference filter

Projection television display device

Color cathode ray tube having interference filter with different pa...

Picture display device using scan direction transposition

Device for inspecting an interference filter for a projection telev...

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

Projection device and associated electro-optic monochrome display d...

Electro-optic color display including luminescent layer and interfe...

Three tube color projection television system having multispot blue...

Display tube having improved brightness distribution

Rear projection screen and rear projection system provided with suc...

Projection television display tube and device having interference f...

Display tube having a display window with an interference filter

Display tube provided with an interference filter

Optical recording disc

Gas discharge laser