Granted Patent
Utility
US 6,722,145 · App. 10/316,176
High efficiency very-low temperature mixed refrigerant system with rapid cool down
Inventors:
Oleg Podtchereniaev, Kevin Flynn, Tarrurisa Apparao, Mikhail Bolarski
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Dec 10, 2002
Inventors
Oleg Podtchereniaev
Kevin Flynn
Tarrurisa Apparao
Mikhail Bolarski
Assignee (at issue)
IGC-Polycold Systems, 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.