Bartholomeus Filmer

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Eindhoven, NL

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Patents Grantslast 30 patents

Information Patent Grant
Glass composition suitable for use in a fluorescent lamp, lamp enve...
- Patent number 5,925,582
- Issue date Jul 20, 1999
- U.S. Philips Corporation
- Bartholomeus Filmer
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass composition for a lamp envelope of a black light blue lamp
- Patent number 5,612,263
- Issue date Mar 18, 1997
- U.S. Philips Corporation
- Bartholomeus Filmer
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass composition suitable for use in electric lamps, stem manufact...
- Patent number 5,470,805
- Issue date Nov 28, 1995
- U.S. Philips Corporation
- Bartholomeus Filmer
- C03 - GLASS MINERAL OR SLAG WOOL