Granted Patent
Utility
US 6,608,855 · App. 10/159,347
Single-mode DBR laser with improved phase-shift section
Inventors:
Wen-Yen Hwang, Klaus Alexander Anselm, Jun Zheng
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: May 31, 2002
Inventors
Wen-Yen Hwang
Klaus Alexander Anselm
Jun Zheng
Assignee (at issue)
Applied Optoelectronics, 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.