Granted Patent
Utility
US 6,459,709 · App. 09/774,904
Wavelength-tunable semiconductor laser diode
Inventors:
Yu-Hwa Lo, Steven G. Hummel, Chenting Lin, Chau-Hong Kuo, Mei-Ling Shek-Stefan, Sergey V. Zaytsev
Patented Case
View Patent ↗
Granted: Oct 1, 2002
Filed: Jan 31, 2001
Inventors
Yu-Hwa Lo
Steven G. Hummel
Chenting Lin
Chau-Hong Kuo
Mei-Ling Shek-Stefan
Sergey V. Zaytsev
Assignee (at issue)
Nova Crystals, 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.