Inventor · disambiguated record
William H. Gumprecht
Also filed as: GUMPRECHT WILLIAM H · GUMPRECHT WILLIAM HENRY
15 granted patents·303 citations·filing 1980–1996
93Inventor score
Files withDU PONT15
Top patents by PatentIndex Score
15 records- 0196US4311863AProcess for the manufacture of 1,1,1,2-tetrafluoroethaneDU PONT·Filed 1980·Granted Jan 19, 1982·67 cites·8 claims
- 0295US4851595ALiquid phase halogen exchange process for the manufacture of 1,1,1,2-tetrafluoroethaneDU PONT·Filed 1988·Granted Jul 25, 1989·58 cites·11 claims
- 0395US4843181AProcess for the manufacture of 1,1,1-trifluorodichloroethane and 1,1,1,2-tetrafluorochloroethaneDU PONT·Filed 1987·Granted Jun 27, 1989·54 cites·11 claims
- 0485US4967024ACatalyzed hydrofluorination processDU PONT·Filed 1989·Granted Oct 30, 1990·26 cites·25 claims
- 0573US5399549AProcess for the manufacture of pentafluoroethaneDU PONT·Filed 1994·Granted Mar 21, 1995·30 cites·14 claims
- 0672USH1129HProcess for manufacture of 1,1,1,2-tetrafluoroethaneDU PONT·Filed 1989·Granted Jan 5, 1993·10 cites·4 claims
- 0772US5045634AFluorination of haloolefinsDU PONT·Filed 1990·Granted Sep 3, 1991·15 cites·6 claims
- 0867US5608127AHalogen exchange process for manufacture of hydrochlorofluoropropanesDU PONT·Filed 1991·Granted Mar 4, 1997·9 cites·16 claims
- 0959US5334787AProcess for the manufacture of pentafluoroethaneDU PONT·Filed 1992·Granted Aug 2, 1994·18 cites·13 claims
- 1045US4960580AProcess for purifying hydrogen fluorideDU PONT·Filed 1989·Granted Oct 2, 1990·6 cites·13 claims
- 1142US4990320AProcess for purifying hydrogen fluorideDU PONT·Filed 1989·Granted Feb 5, 1991·5 cites·13 claims
- 1234US5051538AProcess for 1,1-dichloro-1-fluoroethaneDU PONT·Filed 1989·Granted Sep 24, 1991·3 cites·9 claims
- 1330US4960742ASpent antimony halide catalysts treatmentDU PONT·Filed 1988·Granted Oct 2, 1990·1 cites·5 claims
- 1428US5302766AIsomerization processDU PONT·Filed 1993·Granted Apr 12, 1994·1 cites·6 claims
- 1526US5663478ARecovery of aluminum and/or fluoride values from used aluminum chlorofluoridesDU PONT·Filed 1996·Granted Sep 2, 1997·0 cites·10 claims
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