Granted Patent
Utility
US 6,531,052 · App. 09/680,362
Regenerable adsorbent for removing sulfur species from hydrocarbon fluids
Inventors:
Robert A. Frye, Dana L. Rehms, Elise M. MOPHETT
Patented Case
View Patent ↗
Granted: Mar 11, 2003
Filed: Oct 5, 2000
Inventors
Robert A. Frye
Dana L. Rehms
Elise M. MOPHETT
Assignee (at issue)
ALCOA INC.
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.