The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 24, 2009
Filed:
Jan. 04, 2006
Ming-lang Tsai, Donggang Town, TW;
Jin-sheng Chang, Kaohsiung, TW;
Yii-tay Chiou, Kaohsiung, TW;
Chun-hsun Chu, Tainan, TW;
Ming-Lang Tsai, Donggang Town, TW;
Jin-Sheng Chang, Kaohsiung, TW;
Yii-Tay Chiou, Kaohsiung, TW;
Chun-Hsun Chu, Tainan, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
The apparatus for sensing plural gases is substantially a gas sensor adopting planar lightwave circuit for constructing reference optical path and sensing optical path, which is a flat structure with abilities of high accuracy, long-term stability, and short response time. The gas sensor can be widely applied for monitoring the safety of a working environment, securing the safety of workers, alerting potential hazard in a factory, inspecting harmful materials in a specific area, testing leakage of a pipeline, inspecting waste gas exhausted from automobile/motorcycle, and monitoring the living quality of household environment.