Inventor · disambiguated record
Carl G. Krespan
Also filed as: KRESPAN CARL G · KRESPAN CARL GEORGE
75 granted patents·1,684 citations·filing 1973–2000
99Inventor score
Top patents by PatentIndex Score
75 records- 0199US4349650APolyfluoroallyloxy compounds, their preparation and copolymers therefromDU PONT·Filed 1980·Granted Sep 14, 1982·117 cites·9 claims
- 0299US4275225APolyfluoroallyloxy compounds, their preparation and copolymers therefromDU PONT·Filed 1980·Granted Jun 23, 1981·128 cites·7 claims
- 0398US5162594AProcess for production of polyfluoroolefinsDU PONT·Filed 1991·Granted Nov 10, 1992·118 cites·27 claims
- 0498US4335255AAlkyl perfluoro (2-methyl-5-oxo-3-oxahexanoate)DU PONT·Filed 1980·Granted Jun 15, 1982·91 cites·15 claims
- 0597US5481028ALewis acid catalyzed conjugated iodofluorination of fluoroolefinsDU PONT·Filed 1994·Granted Jan 2, 1996·88 cites·19 claims
- 0697US5182342AHydrofluorocarbon solvents for fluoromonomer polymerizationDU PONT·Filed 1992·Granted Jan 26, 1993·210 cites·25 claims
- 0796US5382704AFluorinated methyl ethersDU PONT·Filed 1993·Granted Jan 17, 1995·64 cites·12 claims
- 0896US5268122AGem-dihydropolyfluoroalkanes and monohydropolyfluoroalkenes, processes for their production, and use of gem-dihydropolyfluoroalkanes in cleaning compositionsDU PONT·Filed 1991·Granted Dec 7, 1993·64 cites·8 claims
- 0996US4273729APolyfluoroallyloxy compounds, their preparation and copolymers therefromDU PONT·Filed 1980·Granted Jun 16, 1981·54 cites·12 claims
- 1094US5171902ASaturated linear polyfluorohydrocarbons, processes for their production, and their use in cleaning compositionsDU PONT·Filed 1990·Granted Dec 15, 1992·36 cites·15 claims
- 1194US5157171AProcess for chlorofluoropropanesDU PONT·Filed 1991·Granted Oct 20, 1992·52 cites·11 claims
- 1293US4273728APolyfluoroallyloxy compounds, their preparation and copolymers therefromDU PONT·Filed 1980·Granted Jun 16, 1981·36 cites·7 claims
- 1389US5064559ABinary azeotropic compositions of (CF3 CHFCHFCF2 CF3) with methanol or ethanol or isopropanolDU PONT·Filed 1990·Granted Nov 12, 1991·68 cites·17 claims
- 1489US4235804APreparation of perfluoroallyl fluorosulfateDU PONT·Filed 1979·Granted Nov 25, 1980·20 cites·11 claims
- 1588US5459212ACarbon based initiators for polymerization and telomerization of vinyl monomersDU PONT·Filed 1994·Granted Oct 17, 1995·45 cites·7 claims
- 1688US4292449APolyfluoroallyloxy compounds, their preparation and copolymers therefromDU PONT·Filed 1980·Granted Sep 29, 1981·22 cites·12 claims
- 1787US6194619B1Gem-dihydropolyfluoroalkanes and monohydropolyfluoroalkenes, processes for their production, and use of gem-dihydropolyfluoroalkanes in cleaning compositionsDU PONT·Filed 1993·Granted Feb 27, 2001·22 cites·8 claims
- 1887US5416246AChlorofluorocarbon isomerizationDU PONT·Filed 1994·Granted May 16, 1995·27 cites·9 claims
- 1986US5504265ASaturated linear polyfluorohydrocarbons, processes for their production, and their use in cleaning compositionsDU PONT·Filed 1992·Granted Apr 2, 1996·17 cites·14 claims
- 2084US7179413B1Flash-spinning process and solutionDU PONT·Filed 2000·Granted Feb 20, 2007·27 cites·24 claims
- 2184US5286822APerfluoroalkyl sulfide polymer solvents for fluoromonomer polymerizationDU PONT·Filed 1993·Granted Feb 15, 1994·39 cites·15 claims
- 2284US5112993AProcess for the preparation of difluoromaleic anhydrideDU PONT·Filed 1989·Granted May 12, 1992·18 cites·22 claims
- 2382US5831131AProcess for preparing peroxidesDU PONT·Filed 1996·Granted Nov 3, 1998·21 cites·7 claims
- 2482US5023362AAlkyl perfluoro(2-methyl-5-oxo-3-oxahexanoate)DU PONT·Filed 1987·Granted Jun 11, 1991·15 cites·3 claims
- 2582US4474700Aβ-Substituted polyfluoropropionate salts and derivativesDU PONT·Filed 1982·Granted Oct 2, 1984·13 cites·12 claims
- 2681US4576752Aβ-Substituted polyfluoroethyl compoundsDU PONT·Filed 1982·Granted Mar 18, 1986·15 cites·23 claims
- 2780US4360645APerfluoroglycidyl ethersDU PONT·Filed 1981·Granted Nov 23, 1982·18 cites·7 claims
- 2878US4810806AHalogenated 1,3-dioxolanes and derivativesDU PONT·Filed 1987·Granted Mar 7, 1989·13 cites·5 claims
- 2971US6025521ATelomerization process for telomerizing ethylenic monomer compoundsDU PONT·Filed 1997·Granted Feb 15, 2000·21 cites·11 claims
- 3070US4126631Aβ-Carbonylpolyfluoroalkyl sulfonate estersDU PONT·Filed 1977·Granted Nov 21, 1978·15 cites·5 claims
- 3169US4384128APerfluoroglycidyl ethersDU PONT·Filed 1982·Granted May 17, 1983·21 cites·4 claims
- 3268US3952015AMacrocyclic compounds having oxa and aza linkages in the ring and containing spirooxetane groupsKRESPAN CARL GEORGE·Filed 1974·Granted Apr 20, 1976·7 cites·6 claims
- 3367US5220082AProcess for production of polyfluoroolefinsDU PONT·Filed 1992·Granted Jun 15, 1993·7 cites·1 claims
- 3466US5962746AProcess for preparing peroxidesDU PONT·Filed 1998·Granted Oct 5, 1999·11 cites·39 claims
- 3566US5565081AProcesses for the preparation of 2,2,3,3-tetrafluoropropionate salts and derivatives thereofDU PONT·Filed 1994·Granted Oct 15, 1996·7 cites·16 claims
- 3666US5026801APolyhalodihydrodioxins and polyhalodioxolesDU PONT·Filed 1989·Granted Jun 25, 1991·5 cites·23 claims
- 3766US4935558AReductive dechlorination of 1,1,1,2-tetrafluoro-2-chloroethaneDU PONT·Filed 1989·Granted Jun 19, 1990·7 cites·18 claims
- 3864US5336801AProcesses for the preparation of 2,2,3,3-tetrafluoropropionate salts and derivatives thereofDU PONT·Filed 1992·Granted Aug 9, 1994·6 cites·21 claims
- 3964US4304927ACarboxylic acids, esters and salts of polyfluoroacetoneDU PONT·Filed 1977·Granted Dec 8, 1981·5 cites·8 claims
- 4061US5574193AInitiators for telomerization of polyfluoroalkyl iodides with fluoroolefinsDU PONT·Filed 1995·Granted Nov 12, 1996·7 cites·22 claims
- 4161US4363898APerfluorodiglycidyl ethersDU PONT·Filed 1981·Granted Dec 14, 1982·6 cites·9 claims
- 4260US6506950B1Saturated linear polyfluorohydrocarbons, processes for their production, and their use in cleaning compositionsDU PONT·Filed 1995·Granted Jan 14, 2003·4 cites·20 claims
- 4358US5070213APerfluoro-4,4'-bis(2,2-dimethyl-1,3-dioxolane) and its preparation and useDU PONT·Filed 1990·Granted Dec 3, 1991·5 cites·1 claims
- 4457US5908966AThermal process for the preparation of a telomeric alkyl iodideDU PONT·Filed 1997·Granted Jun 1, 1999·11 cites·10 claims
- 4556US4214070APolymers of 2-ketopentafluoropropanesulfonic acid and related acids with ethylene or fluorinated unsaturated monomersDU PONT·Filed 1979·Granted Jul 22, 1980·8 cites·4 claims
- 4655US6262320B1Addition of trifluoromethanes to fluoroolefins and isomerization of monohaloperfluoro alkanesDU PONT·Filed 2000·Granted Jul 17, 2001·1 cites·9 claims
- 4754US5723701ASaturated linear polyfluorohydrocarbons, processes for their production, and their use in cleaning compositionsDU PONT·Filed 1995·Granted Mar 3, 1998·3 cites·20 claims
- 4854US4766248Aβ-substituted polyfluoroethyl compoundsDU PONT·Filed 1986·Granted Aug 23, 1988·4 cites·14 claims
- 4952US4316986APreparation of difluoromalonyl fluorideDU PONT·Filed 1980·Granted Feb 23, 1982·5 cites·10 claims
- 5052US4243504AFluorovinyl ether polymersDU PONT·Filed 1979·Granted Jan 6, 1981·9 cites·30 claims
Showing the top 50 of 75 patent records by PatentIndex Score.
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