Granted Patent
Utility
US 6,248,239 · App. 08/887,350
Effluent collection apparatus and method
Inventors:
Kuo-Liang Hsi, Jindong Zhao, Michael Kochersperger, William E. Werner, Pau Miau Yuan
Patented Case
View Patent ↗
Granted: Jun 19, 2001
Filed: Jul 2, 1997
Inventors
Kuo-Liang Hsi
Jindong Zhao
Michael Kochersperger
William E. Werner
Pau Miau Yuan
Assignee (at issue)
PerkinElmer, 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.