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Gunther Leykauf
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Munich, DE
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last 30 patents
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Patent Grant
Ballast-free permanent rail way having recessed tie with central fa...
Patent number
5,435,486
Issue date
Jul 25, 1995
Walter Bau-Aktiengesellschaft
Rudolf Gerlach
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Patent Grant
Prestressed concrete railroad tie
Patent number
5,135,164
Issue date
Aug 4, 1992
Dyckerhoff & Widmann Aktiengesellschaft
Peter Auer
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Patent Grant
Railroad roadway for high speed rail-mounted vehicles
Patent number
4,905,896
Issue date
Mar 6, 1990
Dyckerhoff & Widmann Aktiengesellschaft
Josef Eisenmann
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES