WG

William H. Gumprecht

EA E.I. Du Pont De Nemours And: 15 patents #410 of 8,010Top 6%
📍 Wilmington, DE: #312 of 3,182 inventorsTop 10%
🗺 Delaware: #585 of 7,163 inventorsTop 9%
Overall (All Time): #328,564 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
5663478 Recovery of aluminum and/or fluoride values from used aluminum chlorofluorides William Huebner 1997-09-02
5608127 Halogen exchange process for manufacture of hydrochlorofluoropropanes 1997-03-04
5399549 Process for the manufacture of pentafluoroethane Vinci Martinez Felix, Barry Asher Mahler 1995-03-21
5334787 Process for the manufacture of pentafluoroethane Vinci Martinez Felix, Barry Asher Mahler 1994-08-02
5302766 Isomerization process William J. Steiner, John A. Wehner 1994-04-12
H1129 Process for manufacture of 1,1,1,2-tetrafluoroethane 1993-01-05
5051538 Process for 1,1-dichloro-1-fluoroethane 1991-09-24
5045634 Fluorination of haloolefins Richard E. Fernandez 1991-09-03
4990320 Process for purifying hydrogen fluoride 1991-02-05
4967024 Catalyzed hydrofluorination process Wesley Gerald Schindel, Vinci Martinez Felix 1990-10-30
4960742 Spent antimony halide catalysts treatment 1990-10-02
4960580 Process for purifying hydrogen fluoride 1990-10-02
4851595 Liquid phase halogen exchange process for the manufacture of 1,1,1,2-tetrafluoroethane 1989-07-25
4843181 Process for the manufacture of 1,1,1-trifluorodichloroethane and 1,1,1,2-tetrafluorochloroethane Leo Ernest Manzer, V. N. Mallikarjuna Rao 1989-06-27
4311863 Process for the manufacture of 1,1,1,2-tetrafluoroethane 1982-01-19