Granted Patent
Utility
US 5,925,717 · App. 08/816,538
Process for hydrogenation of conjugated diene polymers and catalyst compositions suitable for use therein
Inventors:
Eric Johannes Maria De Boer, Bart Hessen, Adriaan A. Van Der Huizen, Wouter De Jong, Adrianus Johannes Van Der Linden, Bart Johan Ruisch, Lodewijk Schoon, Heleen Johanna Augusta De Smet, Frederik Hendrik Van Der Steen, Hubertus Cornelis Thomas Lucianes Van Strien, Alan Villena, Judith Johanna Berendina Walhof
Patented Case
View Patent ↗
Granted: Jul 20, 1999
Filed: Mar 13, 1997
Inventors
Eric Johannes Maria De Boer
Bart Hessen
Adriaan A. Van Der Huizen
Wouter De Jong
Adrianus Johannes Van Der Linden
Bart Johan Ruisch
Lodewijk Schoon
Heleen Johanna Augusta De Smet
Frederik Hendrik Van Der Steen
Hubertus Cornelis Thomas Lucianes Van Strien
Alan Villena
Judith Johanna Berendina Walhof
Assignee (at issue)
SHELL OIL COMPANY
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.