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Petrus F. J. van den Boom
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Eindhoven, NL
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Patents Grants
last 30 patents
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Patent Grant
Low-pressure discharge lamp and method of manufacturing a low-press...
Patent number
6,137,236
Issue date
Oct 24, 2000
U.S. Philips Corporation
Leonardus G. M. Michiels
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Lighting unit and electrodeless low-pressure discharge lamp and dis...
Patent number
5,912,536
Issue date
Jun 15, 1999
U.S. Philips Corporation
Leonardus G. M. Michiels
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High-pressure sodium discharge lamp with getter
Patent number
5,434,472
Issue date
Jul 18, 1995
United States Philips Corporation
Petrus F. J. van den Boom
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Low-pressure mercury vapor discharge lamp
Patent number
4,544,997
Issue date
Oct 1, 1985
U.S. Philips Corporation
Antonius M. J. H. Seuter
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Luminescent bivalent europium-activated barium borophosphate and di...
Patent number
4,185,222
Issue date
Jan 22, 1980
U.S. Philips Corporation
Petrus F. J. van den Boom
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Luminescent materials and discharge lamp containing the same
Patent number
4,151,443
Issue date
Apr 24, 1979
U.S. Philips Corporation
Petrus F. J. VAN DEN Boom
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Luminescent material
Patent number
4,003,845
Issue date
Jan 18, 1977
U.S. Philips Corporation
Petrus Franciscus Josef VAN DEN Boom
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...