Granted Patent
Utility
US 6,704,487 · App. 09/927,256
Method and system for reducing dn/dt birefringence in a thermo-optic PLC device
Inventors:
Farnaz Parhami, Alice Liu, Pamela Trammel
Patented Case
View Patent ↗
Granted: Mar 9, 2004
Filed: Aug 10, 2001
Inventors
Farnaz Parhami
Alice Liu
Pamela Trammel
Assignee (at issue)
LIGHTWAVE MICROSYSTEMS, 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.