Granted Patent
Utility
US 6,468,472 · App. 09/397,543
Cleaning and decontaminating dialyzers by per-compound solutions
Inventors:
Zhi-Jian Yu, Stanley W. Huth
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: Sep 16, 1999
Inventors
Zhi-Jian Yu
Stanley W. Huth
Assignee (at issue)
METREX RESEARCH, LLC
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.