Granted Patent
Utility
US 6,182,469 · App. 09/439,508
Hydrocarbon gas processing
Inventors:
Roy E. Campbell, John D. Wilkinson, Hank M. Hudson, Michael C. Pierce
Patented Case
View Patent ↗
Granted: Feb 6, 2001
Filed: Nov 12, 1999
Inventors
Roy E. Campbell
John D. Wilkinson
Hank M. Hudson
Michael C. Pierce
Assignee (at issue)
Elcor Corporation
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.