Granted Patent
Utility
US 6,537,623 · App. 09/799,496
Manufacture of silica waveguides with minimal absorption
Inventors:
Luc Ouellet, Manuel Grondin
Patented Case
View Patent ↗
Granted: Mar 25, 2003
Filed: Mar 7, 2001
Inventors
Luc Ouellet
Manuel Grondin
Assignee (at issue)
DALSA Semiconductor 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.