Granted Patent
Utility
US 6,294,606 · App. 09/487,267
Nonionic surfactant-free emulsion polymerization process
Inventors:
Allan K. Chen, Chieh-Min Cheng, Tie Hwee Ng, George Liebermann
Patented Case
View Patent ↗
Granted: Sep 25, 2001
Filed: Jan 19, 2000
Inventors
Allan K. Chen
Chieh-Min Cheng
Tie Hwee Ng
George Liebermann
Assignee (at issue)
Xerox Corporation
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.