Granted Patent
Utility
US 6,369,190 · App. 09/712,321
Extraction of triethylamine in polycarbonate by the use of static mixers
Inventors:
Mingjie Zhu, Allen Ko
Patented Case
View Patent ↗
Granted: Apr 9, 2002
Filed: Nov 14, 2000
Inventors
Mingjie Zhu
Allen Ko
Assignee (at issue)
General Electric Company
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.