DD

David Daum

Shell Oil Compny: 4 patents #842 of 4,423Top 20%
Overall (All Time): #1,263,637 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6965056 Removal of salts in the manufacture of phenolic compound Austin Dale Taggart, II, Edgar Donald Allan, Roberto Carlos Longoria, Robert Lawrence Blackbourn 2005-11-15
6720461 Removal of salts in the manufacture of phenolic compound Austin Dale Taggart, II, Edgar Donald Allan, Roberto Carlos Longoria, Robert Lawrence Blackbourn 2004-04-13
5104972 Removal of hydrogenation catalyst from polymer solutions by contact with silicates Ajay Madhav Madgavkar, Carma J. Gibler 1992-04-14
5089541 Removal of hydrogenation catalyst from polymer solutions by contact with activated carbon Ajay Madhav Madgavkar, Carma J. Gibler 1992-02-18