DR

David J. Roha

AL Alcoa: 3 patents #136 of 632Top 25%
EA Elkem As: 2 patents #14 of 96Top 15%
AA Aluminum Company Of America: 1 patents #495 of 1,017Top 50%
Overall (All Time): #1,244,015 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7819937 Use of alumina-carbon agglomerates in the carbothermic production of aluminum Richard J. Fruehan, Anders Schei, Mark L. Weaver 2010-10-26
7753988 Use of alumina-carbon agglomerates in the carbothermic production of aluminum Richard J. Fruehan, Anders Schei, Mark L. Weaver 2010-07-13
7267158 Control of oxide growth on molten aluminum during casting using a high moisture atmosphere Paula L. Kolek, David H. DeYoung, Patricia A. Stewart, Michael A. Easley, Jorge A. Ramos Cruz +1 more 2007-09-11
6117302 Fuel cell aluminum production 2000-09-12