Granted Patent
Utility
US 6,462,011 · App. 09/491,317
Method of and composition for treating hydrocarbon based materials
Inventors:
Bevan C. Collins, Larry D. Martin
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Jan 25, 2000
Inventors
Bevan C. Collins
Larry D. Martin
Assignee (at issue)
United Laboratories International, LLC
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.