JW

John A. Wismer

AR Arkema: 8 patents #34 of 443Top 8%
EA Elf Atochem North America: 5 patents #15 of 167Top 9%
AF Arkema France: 3 patents #229 of 935Top 25%
AC Atofina Chemicals: 2 patents #25 of 97Top 30%
EN Elf Atochem N.A.: 1 patents #1 of 11Top 10%
PE Pennwalt: 1 patents #119 of 288Top 45%
AT Atochem: 1 patents #34 of 107Top 35%
📍 Washington Crossing, PA: #9 of 93 inventorsTop 10%
🗺 Pennsylvania: #2,974 of 74,527 inventorsTop 4%
Overall (All Time): #193,701 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDate
11220472 Processes and systems for recovering R1233ZD in purified form Jay F. Miller 2022-01-11
10532965 E-1-chloro-3,3,3-trifluoropropene production process from 1,1,3,3-tetrachloropropene Anne Pigamo, Bertrand Collier, Philippe Bonnet 2020-01-14
9834499 E-1-chloro-3,3,3-trifluoropropene production process from 1,1,3,3-tetrachloropropene Anne Pigamo, Bertrand Collier, Philippe Bonnet 2017-12-05
9725384 Method for separating organofluorine compounds using membrane Maher Y. Elsheikh, Sri R. Seshadri 2017-08-08
9284241 Process for the removal of contaminant from a hydrochlorofluoroolefin by extractive distillation 2016-03-15
9255045 E-1-chloro-3,3,3-trifluoropropene production process from 1,1,3,3-tetrachloropropene Anne Pigamo, Bertrand Collier, Philippe Bonnet 2016-02-09
9061958 Separation of R-1233 from hydrogen fluoride Benjamin Bin Chen 2015-06-23
8987534 Process for the manufacture of hydrochlorofluoroolefins Maher Y. Elsheikh, Philippe Bonnet, Sri R. Seshadri 2015-03-24
8895788 Process for the manufacture of hydrofluoroolefins Maher Y. Elsheikh, Philippe Bonnet 2014-11-25
8735636 Separation of R-1233 from hydrogen fluoride Benjamin Bin Chen 2014-05-27
8642819 Process for the manufacture of hydrochlorofluoroolefins Maher Y. Elsheikh, Philippe Bonnet 2014-02-04
8642818 Process for the manufacture of hydrofluoroolefins Maher Y. Elsheikh, Philippe Bonnet 2014-02-04
6605193 Recovery of HFC-32 2003-08-12
6479718 Liquid phase process for HCFC-123 Maher Y. Elsheikh, Jonathan Tracy 2002-11-12
6013846 Azeotrope of HF and 1233zd Michael Sheppard Bolmer, Bin Chen 2000-01-11
5639924 Process for the production of 1,1,1-trifluoroethane Maher Y. Elsheikh, Michael Sheppard Bolmer, Jean-Pierre Schirmann, Wayne E. Brooks 1997-06-17
5608124 Process 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 mixtures 1997-03-04
5600038 Adiabatic Hydrofluorination of hydrochlorofluorocarbons Maher Y. Elsheikh, Michael Sheppard Bolmer, Jean-Pierre Schirmann 1997-02-04
5242672 Process for removing sulfur from organic polysulfides Jeffrey H. Yen, Glenn T. Carroll, Vijay R. Srinivas, William J. Tuszynski 1993-09-07
5208398 HF extraction of R365 from R141B 1993-05-04
4975156 Process for the separation of hydrogen fluoride, 1,1-dichloro-1-fluoroethane and 1-chloro-1,1-difluoroethane from liquid mixtures thereof 1990-12-04
4950364 Process for the separation of 1,1-dichloro-1-fluoroethane and 1,1,1,3,3-pentafluorobutane 1990-08-21