Patents

Domestic and International Major Patents

Domestic	International	Design
8 Registered	10 Registered	10 Registered

Domestic Major Patents

	Patent Title	Number	Reg. Year
1	Optical Gas Sensor	494103	2005
2	Gas Cell with Two Parabolic Mirrors and Its Production	574615	2006
3	NDIR Gas Sensor	574616	2006
4	Optical Cavity for Multi-Gas Sensors	979991	2010
5	Optical wave guide for an NDIR gas sensor	1026206	2011
6	NDIR Gas sensor with two independent optical path	1088360	2011
7	Total room controller for indoor air control system	822384	2011
8	Optical Cavity for NDIR Gas Sensors	0576541	2006

International Patents

	Patent Title	Reg. national
1	Optical Gas Sensor	USA, JAPAN, CHINA
2	GAS CELL USING TWO PARABOLIC CONCAVE MIRRORS AND METHOD OF PRODUCING GAS SENSOR USING THE SAME	JAPAN, CHINA,EUROPE
3	Optical cavity for gas Sensor	USA, JAPAN, CHINA

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