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Danuta Grabowski geb. Marszalek
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Wiesbaden, DE
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last 30 patents
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Patent Grant
Optical glass with refractive indexes of 1.60-1.69 and Abbe numbers...
Patent number
4,642,297
Issue date
Feb 10, 1987
Schott Glaswerke
Karl Mennemann
C03 - GLASS MINERAL OR SLAG WOOL
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Patent Grant
Optical light weight glass with a refractive index of >1.70, an...
Patent number
4,526,874
Issue date
Jul 2, 1985
Schott Glaswerke
Danuta Grabowski geb. Marszalek
C03 - GLASS MINERAL OR SLAG WOOL