HL

Heinrich Leffers

WA Wolff Walsrode Ag: 1 patents #100 of 163Top 65%
📍 Walsrode, DE: #57 of 87 inventorsTop 70%
Overall (All Time): #3,778,846 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5446107 Method for the preparation of cationic, water-soluble polymers and their use Klaus Szablikowski, Wolfgang Koch, Hans-Günter Poersch-Panke, Branislav Boehmer 1995-08-29