CK

Carl G. Krespan

EA E.I. Du Pont De Nemours And: 68 patents #26 of 8,010Top 1%
📍 Wilmington, DE: #22 of 3,182 inventorsTop 1%
🗺 Delaware: #51 of 7,163 inventorsTop 1%
Overall (All Time): #31,292 of 4,157,543Top 1%
68
Patents All Time

Issued Patents All Time

Showing 26–50 of 68 patents

Patent #TitleCo-InventorsDate
5235069 Process for the preparation of difluoromaleic anhydride and intermediate compounds produced thereby 1993-08-10
5227500 Halogenated 1,3-dioxolanes and derivatives 1993-07-13
5220082 Process for production of polyfluoroolefins 1993-06-15
5185477 Halohydrin commpounds 1993-02-09
5182342 Hydrofluorocarbon solvents for fluoromonomer polymerization Andrew Edward Feiring, Paul R. Resnick, Bruce E. Smart, Theodore A. Treat, Robert Clayton Wheland 1993-01-26
5171902 Saturated linear polyfluorohydrocarbons, processes for their production, and their use in cleaning compositions V. N. Mallikarjuna Rao 1992-12-15
5162594 Process for production of polyfluoroolefins 1992-11-10
5157171 Process for chlorofluoropropanes Allen Capron Sievert, Frank J. Weigert 1992-10-20
5112993 Process for the preparation of difluoromaleic anhydride 1992-05-12
5101058 Fluorocarbon compounds and processes for preparation thereof 1992-03-31
5070213 Perfluoro-4,4'-bis(2,2-dimethyl-1,3-dioxolane) and its preparation and use Hsu-Nan Huang, Ming-Hong Hung 1991-12-03
5064559 Binary azeotropic compositions of (CF.sub.3 CHFCHFCF.sub.2 CF.sub.3) with methanol or ethanol or isopropanol Abid N. Merchant 1991-11-12
5057586 Halogenated 1,3-dioxolanes and derivatives 1991-10-15
5026801 Polyhalodihydrodioxins and polyhalodioxoles Paul R. Resnick 1991-06-25
5023362 Alkyl perfluoro(2-methyl-5-oxo-3-oxahexanoate) 1991-06-11
4973714 Halogenated 1,3-dioxolanes and derivatives 1990-11-27
4935558 Reductive dechlorination of 1,1,1,2-tetrafluoro-2-chloroethane Leo Ernest Manzer 1990-06-19
4922038 Preparation of 1,1,1,2-tetrafluorodichloroethane Bruce E. Smart 1990-05-01
4851161 .beta.-substituted polyfluoropropionate salts and derivatives 1989-07-25
4822897 Process for preparing polyfluoro .gamma.-ketoesters and lactone isomers thereof 1989-04-18
4810806 Halogenated 1,3-dioxolanes and derivatives 1989-03-07
4786442 Alkyl perfluoro(2-methyl-5-oxo-3-oxahexanoate) 1988-11-22
4766248 .beta.-substituted polyfluoroethyl compounds 1988-08-23
4686300 Polyfluoro gamma-ketoesters and 5-hydroxy gamma lactone analogues thereof 1987-08-11
4594458 Vinyl ether monomers derived from alkyl perfluoro-.omega.-(2-iodoethoxy) compounds 1986-06-10