Inventor · disambiguated record
Fretrick Siu Kwan Ko
Also filed as: KO FRETRICK SIU KWAN
4 granted patents·60 citations·filing 1998–2003
77Inventor score
Files withJOHNSON ELECTRIC SA4
Top patents by PatentIndex Score
4 records- 0163US6097128ADust guardJOHNSON ELECTRIC SA·Filed 1999·Granted Aug 1, 2000·29 cites·9 claims
- 0251US6873083B2Double brush assemblyJOHNSON ELECTRIC SA·Filed 2003·Granted Mar 29, 2005·11 cites·11 claims
- 0340US6007308ACoupling device for a pump impellerJOHNSON ELECTRIC SA·Filed 1998·Granted Dec 28, 1999·12 cites·12 claims
- 0434US6046522ASingle direction single phase synchronous motorJOHNSON ELECTRIC SA·Filed 1998·Granted Apr 4, 2000·8 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →