Inventor · disambiguated record
Hai-Chin Chang
Also filed as: CHANG HAI · CHANG HAI-CHIN
1 granted patent·4 pending applications·9 citations·filing 2007–2014
31Inventor score
Top patents by PatentIndex Score
5 records- 0166US7663692B2Infrared close-circuit television cameraCHANG HAI-CHIN·Filed 2007·Granted Feb 16, 2010·9 cites·3 claims
- 0240US2014181143A1File presentation method and apparatusHUAWEI TECH CO LTD·Filed 2013·Application pending·0 cites
- 0337US2015121316A1Method for unlocking touch-sensitive device, and touch-sensitive deviceHUAWEI TECH CO LTD·Filed 2014·Application pending·0 cites
- 0432US2010157052A1Close-circuit television camera having an UPS systemCHANG HAI-CHIN·Filed 2008·Application pending·0 cites
- 0531US2010026874A1CCTV Camera Lens Adjustment StructureCHANG HAI-CHIN·Filed 2008·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →