HE

Hans D. Engels

BH Bayer Healthcare: 2 patents #3,312 of 8,007Top 45%
📍 Solingen, DE: #175 of 495 inventorsTop 40%
Overall (All Time): #2,321,540 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4898974 Production of 3,3-dimethyl-2-oxo-butyric acid salt Karlfried Dickore, Hans Kratzer, Walter Merz 1990-02-06
4564704 Production of 3,3-dimethyl-2-oxo-butyric acid salt Karlfried Dickore, Hans Kratzer, Walter Merz 1986-01-14