Inventor · disambiguated record
Longchang Sun
Also filed as: Sun longchang
2 granted patents·1 pending application·0 citations·filing 2023–2023
23Inventor score
Top patents by PatentIndex Score
3 records- 0160US12399225B2Battery internal resistance detecting device and battery production systemCONTEMPORARY AMPEREX TECHNOLOGY HONG KONG LTD·Filed 2023·Granted Aug 26, 2025·0 cites·13 claims
- 0260US2024100622A1Welding base, welding unit, and ultrasonic welding machineJIANGSU CONTEMPORARY AMPEREX TECH LTD·Filed 2023·Application pending·0 cites
- 0351US12434278B2Pipe cleaner and pipeline cleaning systemCONTEMPORARY AMPEREX TECHNOLOGY HONG KONG LTD·Filed 2023·Granted Oct 7, 2025·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →