WK

Walter Kalk

BH Bayer Healthcare: 2 patents #3,312 of 8,007Top 45%
📍 Leverkusen, DE: #733 of 1,687 inventorsTop 45%
Overall (All Time): #2,344,804 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4695632 Quaternary reactive compounds Karl H. Schundehutte, Manfred Soll 1987-09-22
4362874 Quaternary reactive compounds Karl H. Schundehutte, Manfred Soll 1982-12-07