Granted Patent
Utility
US 6,112,550 · App. 09/222,807
Cryogenic rectification system and hybrid refrigeration generation
Inventors:
Dante Patrick Bonaquist, Bayram Arman, Joseph Alfred Weber, Walter Joseph Olszewski, Mark Edward Vincett
Patented Case
View Patent ↗
Granted: Sep 5, 2000
Filed: Dec 30, 1998
Inventors
Dante Patrick Bonaquist
Bayram Arman
Joseph Alfred Weber
Walter Joseph Olszewski
Mark Edward Vincett
Assignee (at issue)
Praxair Technology, 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.