Inventor · disambiguated record
Yen-John Chen
Also filed as: CHEN YEN-JOHN
3 granted patents·1 pending application·67 citations·filing 2002–2003
71Inventor score
Files withPROLIFIC TECHNOLOGY INC3
Top patents by PatentIndex Score
4 records- 0188US6737860B2System for controlling rotational speed of fan according to reference clock frequencyPROLIFIC TECHNOLOGY INC·Filed 2002·Granted May 18, 2004·51 cites·13 claims
- 0259US6956726B2Power protection devicePROLIFIC TECHNOLOGY INC·Filed 2002·Granted Oct 18, 2005·10 cites·8 claims
- 0346US6933699B2Motor drive circuit and method with frequency setting and correcting functionsPROLIFIC TECHNOLOGY INC·Filed 2003·Granted Aug 23, 2005·6 cites·44 claims
- 0431US2003210007A1Input power control deviceFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →