Inventor · disambiguated record
Pang Yen Chang, Deceased
Also filed as: CHANG PANG YEN · WU LEGAL REPRESENTATIVE GRACE
3 granted patents·2 citations·filing 2003–2006
58Inventor score
Technology areasC02F
Top patents by PatentIndex Score
3 records- 0159US7198720B2Method of sludge recyclingINABA TSUGUO·Filed 2006·Granted Apr 3, 2007·1 cites·7 claims
- 0246US7141159B2Method of sludge recyclingINABA TSUGUO·Filed 2005·Granted Nov 28, 2006·0 cites·2 claims
- 0340US7094350B2Method of sludge recyclingROCHE COMPANY·Filed 2003·Granted Aug 22, 2006·1 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →