Inventor · disambiguated record

Pui Yan Chan

Also filed as: CHAN PUI YAN

2 granted patents·14 citations·filing 2004–2006

56Inventor score

Technology areasG09B

Files withWORLD CLASS LEARNING MATERIALS2

Top patents by PatentIndex Score

2 records

0169US7236430B2Apparatus, method and system for teaching elapsed timeWORLD CLASS LEARNING MATERIALS·Filed 2006·Granted Jun 26, 2007·2 cites·11 claims
0267US7121833B2Apparatus, method and system for teaching elapsed timeWORLD CLASS LEARNING MATERIALS·Filed 2004·Granted Oct 17, 2006·12 cites·2 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →