US

Ulrich Stewen

WI Witco: 2 patents #1 of 27Top 4%
📍 Schwerte, NY: #1 of 1 inventorsTop 100%
Overall (1994): #17,066 of 165,921Top 15%
2
Patents 1994

Issued Patents 1994

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5298641 Method of preparing distannanes 1994-03-29
5288886 Method of preparing trialkyl-tin hydrides Ralf Becker, Udo Weinberg 1994-02-22