GS

Gurhard Schaefer

DA Degussa Ag: 1 patents #925 of 2,007Top 50%
Overall (All Time): #3,915,064 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4970059 Method of producing furnace carbon black Peter Kopietz 1990-11-13