Granted Patent
Utility
US 6,502,410 · App. 09/894,968
Nonflammable mixed refrigerants (MR) for use with very low temperature throttle-cycle refrigeration systems
Inventors:
Oleg Podtchereniaev, Mikhail Boiarski, Tamirisa Apparao, Kevin Flynn, Boris Yudin, Vladimir Mogarichni
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Jun 28, 2001
Inventors
Oleg Podtchereniaev
Mikhail Boiarski
Tamirisa Apparao
Kevin Flynn
Boris Yudin
Vladimir Mogarichni
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.