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Henricus J. Ligthart
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Eindhoven, NL
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Patents Grants
last 30 patents
Information
Patent Grant
Tension mask and frame with mechanical connection means
Patent number
6,509,679
Issue date
Jan 21, 2003
Koninklijke Philips Electronics N.V.
Henricus J. Ligthart
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Powder-blasting method
Patent number
6,048,670
Issue date
Apr 11, 2000
U.S. Philips Corporation
Joseph C.M. Bosman
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Blast system
Patent number
6,036,584
Issue date
Mar 14, 2000
U.S. Philips Corporation
Petrus H. W. Swinkels
B24 - GRINDING POLISHING
Information
Patent Grant
Magnetic clamping device
Patent number
5,818,318
Issue date
Oct 6, 1998
U.S. Philips Corporation
Henricus J. Ligthart
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Thin-panel display having resistive spacer plate
Patent number
5,811,921
Issue date
Sep 22, 1998
U.S. Philips Corporation
Henricus J. Ligthart
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of providing a pattern of apertures and/or cavities in a pla...
Patent number
5,800,231
Issue date
Sep 1, 1998
U.S. Philips Corporation
Franciscus C. M. De Haas
B24 - GRINDING POLISHING
Information
Patent Grant
Method of providing a pattern of apertures and/or cavities in a pla...
Patent number
5,730,635
Issue date
Mar 24, 1998
U.S. Philips Corporation
Franciscus C. M. De Haas
B24 - GRINDING POLISHING
Information
Patent Grant
Picture display device comprising a flat-panel type display unit
Patent number
5,525,873
Issue date
Jun 11, 1996
U.S. Philips Corporation
Nicolaas Lambert
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Method of irradiating an object by means of a charged particle beam...
Patent number
5,151,605
Issue date
Sep 29, 1992
U.S. Philips Corporation
Jarig Politiek
H01 - BASIC ELECTRIC ELEMENTS