Granted Patent
Utility
US 6,618,153 · App. 09/741,613
On-line Sagnac interferometric distributed fiber-optic leakage detection device
Inventors:
Wuu-Wen Lin, Shih-Chu Huang
Patented Case
View Patent ↗
Granted: Sep 9, 2003
Filed: Dec 19, 2000
Inventors
Wuu-Wen Lin
Shih-Chu Huang
Assignee (at issue)
CHUNG-SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY
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.