AK

Alfons Karl

DA Degussa Ag: 1 patents #35 of 166Top 25%
Overall (1994): #158,670 of 165,921Top 100%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5292708 Method of producing activated carbon from pit-wet lignite — 1994-03-08