FS

Friedhelm Steffens

CA Covestro Deutschland Ag: 3 patents #13 of 207Top 7%
📍 Leverkusen, DE: #7 of 105 inventorsTop 7%
Overall (2019): #90,563 of 560,194Top 20%
3
Patents 2019

Issued Patents 2019

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10435353 Method for producing isocyanates Joachim Zechlin, Tim Loddenkemper, Dietmar Wastian 2019-10-08
10239826 Method for producing isocyanates Bastian Mahr 2019-03-26
10189945 Method for producing light-coloured TDI-polyisocyanates Josef Sanders, Andreas Hecking, Reinhard Halpaap, Frank Richter, Oswald Wilmes +2 more 2019-01-29