Roswitha Kreiner

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Selb, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for the manufacture of porcelain
- Patent number 5,614,448
- Issue date Mar 25, 1997
- Rosenthal Aktiengesellschaft
- Roswitha Kreiner
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Porcelain, porcelain batch composition and method for the manufactu...
- Patent number 5,455,210
- Issue date Oct 3, 1995
- Rosenthal Aktiengesellschaft
- Roswitha Kreiner
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Decorative flatware handles and process for their preparation
- Patent number 4,521,356
- Issue date Jun 4, 1985
- Rosenthal Aktiengesellschaft
- Hartmut Keller
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...