Inventor · disambiguated record
Heng-Hsiang Chang
Also filed as: CHANG HENG-HSIANG
5 granted patents·1 pending application·39 citations·filing 2002–2007
79Inventor score
Top patents by PatentIndex Score
6 records- 0185US7486423B2Linear guiding apparatusCHANG HENG-HSIANG·Filed 2006·Granted Feb 3, 2009·15 cites·29 claims
- 0282US7764920B2Duplex document feederASIA OPTICAL CO INC·Filed 2007·Granted Jul 27, 2010·8 cites·10 claims
- 0381US7973983B2Light guide device and illumination module using the sameASIA OPTICAL CO INC·Filed 2007·Granted Jul 5, 2011·8 cites·16 claims
- 0465US7826107B2Scanning device with a fastening unit for fastening a sensing unit to a scanner bodyASIA OPTICAL CO INC·Filed 2007·Granted Nov 2, 2010·2 cites·6 claims
- 0561US7154643B2Linear guiding apparatusCHANG HENG-HSIANG·Filed 2002·Granted Dec 26, 2006·6 cites·23 claims
- 0640US2008084625A1Scanning moduleASIA OPTICAL CO INC·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →