Inventor · disambiguated record
John A. Wismer
Also filed as: WISMER JOHN · WISMER JOHN A · WISMER JOHN ALOYSIUS
22 granted patents·269 citations·filing 1988–2017
95Inventor score
Top patents by PatentIndex Score
22 records- 0198US9834499B2E-1-chloro-3,3,3-trifluoropropene production process from 1,1,3,3-tetrachloropropeneARKEMA FRANCE·Filed 2016·Granted Dec 5, 2017·13 cites·12 claims
- 0298US9255045B2E-1-chloro-3,3,3-trifluoropropene production process from 1,1,3,3-tetrachloropropeneARKEMA FRANCE·Filed 2014·Granted Feb 9, 2016·17 cites·24 claims
- 0397US10532965B2E-1-chloro-3,3,3-trifluoropropene production process from 1,1,3,3-tetrachloropropeneARKEMA FRANCE·Filed 2017·Granted Jan 14, 2020·13 cites·16 claims
- 0497US6013846AAzeotrope of HF and 1233zdATOCHEM NORTH AMERICA ELF·Filed 1998·Granted Jan 11, 2000·106 cites·11 claims
- 0592US4950364AProcess for the separation of 1,1-dichloro-1-fluoroethane and 1,1,1,3,3-pentafluorobutanePENNWALT CORP·Filed 1989·Granted Aug 21, 1990·34 cites·12 claims
- 0687US8642819B2Process for the manufacture of hydrochlorofluoroolefinsELSHEIKH MAHER Y·Filed 2009·Granted Feb 4, 2014·6 cites·8 claims
- 0784US8895788B2Process for the manufacture of hydrofluoroolefinsARKEMA INC·Filed 2014·Granted Nov 25, 2014·2 cites·10 claims
- 0884US6479718B1Liquid phase process for HCFC-123ATOFINA CHEM INC·Filed 2002·Granted Nov 12, 2002·15 cites·7 claims
- 0978US9725384B2Method for separating organofluorine compounds using membraneARKEMA INC·Filed 2014·Granted Aug 8, 2017·3 cites·16 claims
- 1077US8987534B2Process for the manufacture of hydrochlorofluoroolefinsARKEMA INC·Filed 2014·Granted Mar 24, 2015·1 cites·8 claims
- 1176US5208398AHF extraction of R365 from R141BELF ATOCHEM N A INC·Filed 1992·Granted May 4, 1993·14 cites·2 claims
- 1275US9061958B2Separation of R-1233 from hydrogen fluorideARKEMA INC·Filed 2014·Granted Jun 23, 2015·1 cites·16 claims
- 1374US8735636B2Separation of R-1233 from hydrogen fluorideWISMER JOHN A·Filed 2010·Granted May 27, 2014·2 cites·8 claims
- 1468US6605193B2Recovery of HFC-32ATOFINA CHEM INC·Filed 2001·Granted Aug 12, 2003·4 cites·3 claims
- 1566US4975156AProcess for the separation of hydrogen fluoride, 1,1-dichloro-1-fluoroethane and 1-chloro-1,1-difluoroethane from liquid mixtures thereofATOCHEM NORTH AMERICA·Filed 1989·Granted Dec 4, 1990·25 cites·17 claims
- 1665US8642818B2Process for the manufacture of hydrofluoroolefinsELSHEIKH MAHER Y·Filed 2009·Granted Feb 4, 2014·0 cites·15 claims
- 1762US5242672AProcess for removing sulfur from organic polysulfidesATOCHEM NORTH AMERICA ELF·Filed 1988·Granted Sep 7, 1993·7 cites·5 claims
- 1858US9284241B2Process for the removal of contaminant from a hydrochlorofluoroolefin by extractive distillationARKEMA INC·Filed 2013·Granted Mar 15, 2016·0 cites·20 claims
- 1955US5639924AProcess for the production of 1,1,1-trifluoroethaneATOCHEM NORTH AMERICA ELF·Filed 1994·Granted Jun 17, 1997·4 cites·30 claims
- 2051US11220472B2Processes and systems for recovering R1233ZD in purified formARKEMA INC·Filed 2017·Granted Jan 11, 2022·0 cites·25 claims
- 2139US5600038AAdiabatic Hydrofluorination of hydrochlorofluorocarbonsATOCHEM NORTH AMERICA ELF·Filed 1995·Granted Feb 4, 1997·1 cites·22 claims
- 2236US5608124AProcess for continuous liquid phase reaction of hydrogen fluoride and 1,1,1-trichloroethane to provide 1,1-dichloro-1-fluoroethane and 1-chloro-1, 1-difluoroethane mixturesATOCHEM NORTH AMERICA ELF·Filed 1992·Granted Mar 4, 1997·1 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →