DD

Donald J. Dumas

EA E.I. Du Pont De Nemours And: 23 patents #217 of 8,010Top 3%
CA Corteva Agriscience: 1 patents #129 of 341Top 40%
FM Fmc: 1 patents #867 of 1,735Top 50%
📍 Wilmington, DE: #142 of 3,182 inventorsTop 5%
🗺 Delaware: #272 of 7,163 inventorsTop 4%
Overall (All Time): #150,820 of 4,157,543Top 4%
26
Patents All Time

Issued Patents All Time

Showing 1–25 of 26 patents

Patent #TitleCo-InventorsDate
12356988 Process and intermediates for the preparation of certain mesoionic pesticides Junbae Hong 2025-07-15
10155718 Process to prepare 3-methyl-2-nitrobenzoic acid by air oxidation 2018-12-18
9828328 Process to prepare 3-methyl-2-nitrobenzoic acid by air oxidation Stephen Ernest Jacobson, Rupert Spence, Sarah May Crawford, Venkateswara Rao Surisetty 2017-11-28
8247570 Process for preparing 2-amino-5-cyanobenzoic acid derivatives Albert Loren Casalnuovo 2012-08-21
8242279 Process for preparing 2-amino-5-cyanobenzoic acid derivatives 2012-08-14
8049029 Process for preparing 2-amino-5-cyanobenzoic acid derivatives Joerg Bruening, Gary David Annis, Rafael Shapiro 2011-11-01
H1950 Processes for preparing indeno[1,2-E][1,3,4]oxadiazine-dicarboxylates 2001-03-06
5990315 Process for the preparation of sulfentrazone 1999-11-23
5811585 Process for preparing 5-chloro-2,3-dihydro-1H-inden-1-one Sourav Kumar Sengupta, David Richard Corbin 1998-09-22
H1705 Process for preparing 2-carboalkoxy-1-indanones William Christopher Hollinsed 1998-01-06
5235077 Process for preparing phenyl esters of substituted acids Bijan Amini, Ronald A. Fong, George C. Sonnichsen 1993-08-10
5153341 Process for preparing benzenesulfonate salts Bijan Amini, George C. Sonnichsen 1992-10-06
5069828 Process for preparing benzenesulfonate salts Vinayakam Subramanyam 1991-12-03
4985180 Process for preparing phenyl esters of substituted acids Harold E. Bellis, George C. Sonnichsen, Vinayakam Subramanyam 1991-01-15
4956005 Herbicidal orthosulfonamide benzene sulfonylureas 1990-09-11
4897108 Herbicidal sulfonamides 1990-01-30
4892575 Herbicidal sulfonamides Martha M. Bolinski 1990-01-09
4878937 Herbicidal sulfonamides Marcus P. Moon 1989-11-07
4802906 Herbicidal ortho-sulfonamide benzenesulfonylureas 1989-02-07
4769060 Herbicidal sulfonamides 1988-09-06
4752322 Herbicidal sulfonamides Marcus P. Moon 1988-06-21
4744816 Herbicidal sulfonamides Martha M. Bolinski 1988-05-17
4718938 Herbicidal sulfonamides 1988-01-12
4662932 Herbicidal sulfonamides 1987-05-05
4661147 Herbicidal sulfonamides 1987-04-28