Johann Krammer

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Patents Grantslast 30 patents

Information Patent Grant
Soil conditioners
- Patent number 5,405,425
- Issue date Apr 11, 1995
- Chemie Linz Gesellschaft m.b.H.
- Stefan Pieh
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Grant
Long-shelflife concentrated aqueous solutions of melamine-formaldeh...
- Patent number 4,707,508
- Issue date Nov 17, 1987
- Chemie Linz Aktiengesellschaft
- Stefan Pieh
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES