Ulrich Hahn

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Dortmund, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for calcining limestone
- Patent number 4,854,861
- Issue date Aug 8, 1989
- Deutsche Filterbau GmbH
- Winfried G. Hartweck
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for treating particles of adsorbent used to remove phenol f...
- Patent number 4,177,139
- Issue date Dec 4, 1979
- C. Otto & Comp. G.m.b.H.
- Ulrich Hahn
- C01 - INORGANIC CHEMISTRY