Inventor · disambiguated record
Chang Liu
Also filed as: LIU CHANG · LIU CHANG-CHANG
3 granted patents·31 citations·filing 1998–2021
69Inventor score
Technology areasB25B
Top patents by PatentIndex Score
3 records- 0173USD1033774SCleanerJIANGSU MIDEA CLEANING APPLIANCES CO LTD·Filed 2021·Granted Jul 2, 2024·5 cites·1 claims
- 0269USD1020147SCombined vacuum cleaner and holder thereforJIANGSU MIDEA CLEANING APPLIANCES CO LTD·Filed 2021·Granted Mar 26, 2024·4 cites·1 claims
- 0352US6044733AScrewdriver having a retractable and flexible shankYUNG HSING CHIU·Filed 1998·Granted Apr 4, 2000·22 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →