WD

William S. Derwin

OC Occidental Chemical: 14 patents #12 of 341Top 4%
📍 Buffalo, NY: #28 of 839 inventorsTop 4%
🗺 New York: #10,487 of 115,490 inventorsTop 10%
Overall (All Time): #356,990 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
6303812 Isolation of products from selective dehalogenation of haloaromatics Michael J. Fifolt, Michael C. Savidakis, Ronald F. Spohn, Daniel R. Thielen, David C. Johnson 2001-10-16
6284934 Reducing meta content of isomeric mixtures of halo substituted alkylbenzenes Michael J. Fifolt, Viesturs Lesins, Arthur H. Morth, Frank P. Bermel, David Y. Tang +2 more 2001-09-04
6201152 Method of making 3,5-dichloro-p-toluoyl chloride Michael J. Fifolt, Sanjay Mandal 2001-03-13
6117278 Method of making .alpha.-chloroxylenes Sanjay Mandal, Kevin R. Benson, Michael J. Fifolt, John J. Hickey, James Franc +1 more 2000-09-12
6118018 Chlorination and bromination of aromatic compounds at atmospheric pressure Michael C. Savidakis, Michael J. Fifolt, Daniel R. Thielen, Ronald F. Spohn, David C. Johnson 2000-09-12
6118028 Method of making trifluoromethoxybenzenes Kevin R. Benson, John J. Hickey, Michael J. Fifolt, Sanjay Mandal 2000-09-12
5773668 Method of making trichloromethoxybenzene Lawrence B. Fertel, Michael J. Fifolt, Mary Cocoman, Walter Opalinski 1998-06-30
5596104 Preparation of 3,4,6-trifluorophthalic acid Neil J. O'Reilly, Henry Lin, Deanne M. Nowak 1997-01-21
5380926 Method of making 3-methoxy-2,4,5-trifluorobenzoic acid Lawrence B. Fertel 1995-01-10
5294738 Process for selective hydrodefluorination Jeffrey S. Stults, Lawrence B. Fertel 1994-03-15
5233082 Method of making 3-hydroxy-2,4,5-trifluorobenzoic acid Lawrence B. Fertel 1993-08-03
5233085 Preparation of 2,4,5-trifluorobenzoic acid by decarboxylation of 3,4,6-trifluorophthalic acid Neil J. O'Reilly, Henry Lin 1993-08-03
4981999 Selective removal of chlorine from chlorophthalic compounds Neil J. O'Reilly, Henry Lin 1991-01-01
4935541 Preparation of 2,4,5-trifluorobenzoic acid by decarboxylation of 3,4,6-trifluorophthalic anhydride Neil J. O'Reilly, Henry Lin 1990-06-19