Granted Patent
Utility
US 5,330,970 · App. 07/861,729
Composition and method for inhibiting coke formation and deposition during pyrolytic hydrocarbon processing
Inventors:
Dwight K. Reid, Daniel E. Fields
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: Apr 1, 1992
Inventors
Dwight K. Reid
Daniel E. Fields
Assignee (at issue)
Betz Laboratories, 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.