Helga Grunzel

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Gelsenkirchen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for applying antidrip edge to a glass sheet
- Patent number 5,837,342
- Issue date Nov 17, 1998
- Flachglas AG
- Hans-Henning Nolte
- B32 - LAYERED PRODUCTS
Information Patent Grant
Fire resistant glass structure
- Patent number 5,766,770
- Issue date Jun 16, 1998
- Flachglas AG
- Hans-Henning Nolte
- B32 - LAYERED PRODUCTS