Inventor · disambiguated record
Qingquan Liu
Also filed as: LIU QINGQUAN
11 granted patents·5 pending applications·103 citations·filing 2009–2025
88Inventor score
Files withSHENZHEN ALEX TECH CO LTD4SHENZHEN INTELLIGENT DOCTOR TECH CO LTD3LIU QINGQUAN2SHANGHAI INST TECH PHYSICS CAS2UNIV HUNAN SCIENCE & TECHNOLOGY2
Top patents by PatentIndex Score
16 records- 0194USD912644SOpen-ear headphonesSHENZHEN ALEX TECH CO LTD·Filed 2020·Granted Mar 9, 2021·48 cites·1 claims
- 0289US11826534B2Ear, nose, and throat irrigatorSHENZHEN ALEX TECH CO LTD·Filed 2021·Granted Nov 28, 2023·2 cites·16 claims
- 0384US8725115B2Method and system for processing messageLIU QINGQUAN·Filed 2009·Granted May 13, 2014·17 cites·15 claims
- 0481USD1009249SEar washerSHENZHEN ALEX TECH CO LTD·Filed 2021·Granted Dec 26, 2023·9 cites·1 claims
- 0581US8876582B2Ventilation deviceGAO SHOUYONG·Filed 2011·Granted Nov 4, 2014·15 cites·7 claims
- 0678USD1024330SEar wax removal toolSHENZHEN INTELLIGENT DOCTOR TECH CO LTD·Filed 2022·Granted Apr 23, 2024·7 cites·1 claims
- 0775US11076218B2Horn assembly and dual-listening bluetooth headsetSHENZHEN ALEX TECH CO LTD·Filed 2020·Granted Jul 27, 2021·1 cites·20 claims
- 0864USD1024329SEar wax removal toolSHENZHEN INTELLIGENT DOCTOR TECH CO LTD·Filed 2022·Granted Apr 23, 2024·3 cites·1 claims
- 0957USD1063140SLightLIU QINGQUAN·Filed 2024·Granted Feb 18, 2025·1 cites·1 claims
- 1055US2024066203A1Ear cleaning deviceSHENZHEN INTELLIGENT DOCTOR TECH CO LTD·Filed 2022·Application pending·0 cites
- 1155US2025189372A1Interference structure, detection apparatus, and spectrometerSHANGHAI INST TECH PHYSICS CAS·Filed 2025·Application pending·0 cites
- 1252US2023375405A1Method and device for reconstructing spectrum, spectrometer, non-transitory computer-readable storage medium, and electronic deviceSHANGHAI INST TECH PHYSICS CAS·Filed 2023·Application pending·0 cites
- 1345US2024238358A1Traditional chinese medicine composition for infectious disease recovery and use thereofCHINA RESOURCES SANJIU MEDICAL & PHARMACEUTICAL CO LTD·Filed 2021·Application pending·0 cites
- 1445US2023113539A1Traditional Chinese medicine for dispersing lung qi and detoxicatingSHANDONG BUCHANG PHARMACEUTICALS CO LTD·Filed 2021·Application pending·0 cites
- 1542US10988898B2Method for preparing active carbon-based special synthetic paperUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2018·Granted Apr 27, 2021·0 cites·8 claims
- 1641US11015294B2Method for preparing titanium dioxide-based synthetic paperUNIV HUNAN SCIENCE & TECHNOLOGY·Filed 2018·Granted May 25, 2021·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →