HS

Hans Schaefer

DA Degussa Ag: 1 patents #33 of 130Top 30%
📍 Lakewood, CA: #2 of 10 inventorsTop 20%
🗺 California: #2,144 of 10,592 inventorsTop 25%
Overall (1989): #107,794 of 140,708Top 80%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4853190 Process & apparatus for the production of hydrogen cyanide Reinhard Manner, Carl Voight, Wolf-Dieter Pfeifer 1989-08-01