Granted Patent
Utility
US 6,294,821 · App. 09/328,273
Single-chip wavelength converter
Inventor:
Sethumadhavan Chandrasekhar
Patented Case
View Patent ↗
Granted: Sep 25, 2001
Filed: Jun 8, 1999
Inventor
Sethumadhavan Chandrasekhar
Assignee (at issue)
Agere Systems Optoelectronics
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.