Granted Patent
Utility
US 6,074,572 · App. 09/286,826
Gas mixture for cryogenic applications
Inventors:
Hong Li, Daniel Taut, Eugene Reu, Eric Ryba
Patented Case
View Patent ↗
Granted: Jun 13, 2000
Filed: Apr 6, 1999
Inventors
Hong Li
Daniel Taut
Eugene Reu
Eric Ryba
Assignee (at issue)
CryoGen, 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.