Inventor · disambiguated record
Haitao Chang
Also filed as: CHANG HAITAO
9 granted patents·3 pending applications·15 citations·filing 2008–2024
82Inventor score
Files withDURACELL US OPERATIONS INC5FUJIAN NANPING NANFU BATTERY3FUJIAN NANPING YANPING DISTRICT NANFU NEW ENERGY TECH CO LTD3POZIN MICHAEL1
Top patents by PatentIndex Score
12 records- 0186US10224582B2Electrochemical secondary battery having inbuilt charging circuitFUJIAN NANPING NANFU BATTERY·Filed 2017·Granted Mar 5, 2019·5 cites·10 claims
- 0283US8304116B2BatteryPOZIN MICHAEL·Filed 2008·Granted Nov 6, 2012·5 cites·15 claims
- 0383US2025112224A1BatteryDURACELL US OPERATIONS INC·Filed 2024·Application pending·0 cites
- 0477US12051797B2BatteryDURACELL US OPERATIONS INC·Filed 2022·Granted Jul 30, 2024·0 cites·15 claims
- 0577US10026997B2Secondary electrochemical battery sealing body with packaged chip shielding structure and batteryFUJIAN NANPING NANFU BATTERY·Filed 2017·Granted Jul 17, 2018·4 cites·11 claims
- 0676US11121394B1Rechargeable button cellFUJIAN NANPING YANPING DISTRICT NANFU NEW ENERGY TECH CO LTD·Filed 2020·Granted Sep 14, 2021·1 cites·7 claims
- 0771US11502532B2BatteryDURACELL US OPERATIONS INC·Filed 2021·Granted Nov 15, 2022·0 cites·16 claims
- 0864US10916956B2BatteryDURACELL US OPERATIONS INC·Filed 2019·Granted Feb 9, 2021·0 cites·14 claims
- 0964US10536016B2BatteryDURACELL US OPERATIONS INC·Filed 2012·Granted Jan 14, 2020·0 cites·17 claims
- 1052US11850673B2Button cell and method for welding electrode tabs to a pole shell of the button cellFUJIAN NANPING YANPING DISTRICT NANFU NEW ENERGY TECH CO LTD·Filed 2020·Granted Dec 26, 2023·0 cites·16 claims
- 1144US2021305543A1Rechargeable button cellFUJIAN NANPING YANPING DISTRICT NANFU NEW ENERGY TECH CO LTD·Filed 2020·Application pending·0 cites
- 1232US2017338450A1Secondary electrochemical battery sealing body with charging indicatorFUJIAN NANPING NANFU BATTERY·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →