Granted Patent
Utility
US 6,719,426 · App. 10/374,221
Compound polarization beam splitters
Inventors:
Simon Magarill, Charles L. Bruzzone, Stephen K. Eckhardt, R. English, E. Gregory Fulkerson, Jiaying Ma, Todd S. Rutherford
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Feb 25, 2003
Inventors
Simon Magarill
Charles L. Bruzzone
Stephen K. Eckhardt
R. English
E. Gregory Fulkerson
Jiaying Ma
Todd S. Rutherford
Assignee (at issue)
3M INNOVATIVE PROPERTIES 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.