DL

Der-Yang Liu

PT Protectronics Technology: 2 patents #5 of 8Top 65%
Overall (All Time): #2,170,593 of 4,157,543Top 55%
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Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7069641 Method for preparing composite materials of a positive temperature coefficient thermistor Ren-Haur Hwang, Chen-Ron Lin 2006-07-04
6590491 Structure for composite materials of positive temperature coefficient thermistor devices and method of making the same Ren-Haur Hwang, Chen-Ron Lin 2003-07-08