Granted Patent
Utility
US 6,016,868 · App. 09/103,590
Production of synthetic crude oil from heavy hydrocarbons recovered by in situ hydrovisbreaking
Inventors:
Armand A. Gregoli, Daniel P. Rimmer
Patented Case
View Patent ↗
Granted: Jan 25, 2000
Filed: Jun 24, 1998
Inventors
Armand A. Gregoli
Daniel P. Rimmer
Assignee (at issue)
World Energy Systems Incorporated
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.