Inventor · disambiguated record
Qichang Cai
Also filed as: CAI QICHANG
4 granted patents·2 citations·filing 2018–2023
58Inventor score
Technology areasH01M
Top patents by PatentIndex Score
4 records- 0193US11777184B2End cover assembly, secondary battery, battery module, apparatus, liquid-injection method and deviceCONTEMPORARY AMPEREX TECHNOLOGY CO LTD·Filed 2022·Granted Oct 3, 2023·2 cites·19 claims
- 0280US12100867B2End cover assembly, secondary battery, battery module, appratus, liquid-injection method and deviceCONTEMPORARY AMPEREX TECHNOLOGY CO LTD·Filed 2023·Granted Sep 24, 2024·0 cites·7 claims
- 0364US12261307B2End cover assembly, battery cell, battery and method and device for manufacturing battery cellCONTEMPORARY AMPEREX TECHNOLOGY HONG KONG LTD·Filed 2021·Granted Mar 25, 2025·0 cites·18 claims
- 0458US10644272B2Cap assembly and secondary batteryCONTEMPORARY AMPEREX TECHNOLOGY CO LTD·Filed 2018·Granted May 5, 2020·0 cites·13 claims
Join the waitlist — get patent alerts
Get an alert when Qichang Cai files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →