Inventor · disambiguated record
Weichen Liu
Also filed as: LIU WEICHEN
18 granted patents·10 pending applications·89 citations·filing 2013–2025
89Inventor score
Files withAPEX MICROELECTRONICS CO LTD8GEEHY MICROELECTRONICS INC6APEX MICROELECTRONICS COMPANY LTD5YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO LTD3AMERICAN JEREH INT CORPORATION2
Top patents by PatentIndex Score
28 records- 0197US11519405B2Valve spring seat sleeve, valve assembly and plunger pumpYANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO LTD·Filed 2021·Granted Dec 6, 2022·77 cites·16 claims
- 0289US11698063B2Hydraulic end assembly structure of a plunger pumpAMERICAN JEREH INT CORPORATION·Filed 2020·Granted Jul 11, 2023·3 cites·4 claims
- 0388US12152575B2Hydraulic end assembly structure of a plunger pumpAMERICAN JEREH INT CORPORATION·Filed 2023·Granted Nov 26, 2024·1 cites·5 claims
- 0486US9688075B2Ink cartridge, ink cartridge chip, and short-circuit detection method of chipAPEX MICROELECTRONICS CO LTD·Filed 2016·Granted Jun 27, 2017·2 cites·25 claims
- 0582US9753680B2Method for recording chip usage state information, chip of imaging cartridge and imaging cartridgeAPEX MICROELECTRONICS COMPANY LTD·Filed 2016·Granted Sep 5, 2017·4 cites·15 claims
- 0674US9108419B2Method for controlling ink cartridge chip, ink cartridge chip and ink cartridgeAPEX MICROELECTRONICS COMPANY LTD·Filed 2013·Granted Aug 18, 2015·2 cites·25 claims
- 0767US10682860B2Ink cartridge, ink cartridge chip, and short-circuit detection method of chipAPEX MICROELECTRONICS CO LTD·Filed 2018·Granted Jun 16, 2020·0 cites·14 claims
- 0865US2025223952A1Speed Regulating Apparatus, Plunger Pump, and Fracturing DeviceYANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO LTD·Filed 2025·Application pending·0 cites
- 0962US10155393B2Ink cartridge, ink cartridge chip, and short-circuit detection method of chipAPEX MICROELECTRONICS CO LTD·Filed 2017·Granted Dec 18, 2018·0 cites·11 claims
- 1060US12050822B2Access request response method, consumable chip, and storage mediumGEEHY MICROELECTRONICS INC·Filed 2022·Granted Jul 30, 2024·0 cites·19 claims
- 1159US2021149802A1Data processing method, and cartridge chip using themethodAPEX MICROELECTRONICS CO LTD·Filed 2021·Application pending·0 cites
- 1257US2019073572A1Method of transmitting parameter of storage chip of imaging cartridge, storage chip and imaging cartridgeAPEX MICROELECTRONICS CO LTD·Filed 2018·Application pending·0 cites
- 1356US11914309B2Toner cartridgeGEEHY MICROELECTRONICS INC·Filed 2023·Granted Feb 27, 2024·0 cites·18 claims
- 1455US2024176582A1Chip, consumable cartridge, and data transmission methodGEEHY MICROELECTRONICS INC·Filed 2023·Application pending·0 cites
- 1551US11607889B2Remanufactured ink cartridge and electronic patchGEEHY MICROELECTRONICS INC·Filed 2021·Granted Mar 21, 2023·0 cites·20 claims
- 1651US10162582B2Method for recording chip usage state information, chip of imaging cartridge and imaging cartridgeAPEX MICROELECTRONICS COMPANY LTD·Filed 2017·Granted Dec 25, 2018·0 cites·3 claims
- 1750US12085073B2Valve spring fixing device and plunger pumpYANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO LTD·Filed 2022·Granted Sep 10, 2024·0 cites·20 claims
- 1849US2023135115A1Consumable chip and consumable chip response method, consumable cartridge, and storage mediumGEEHY MICROELECTRONICS INC·Filed 2022·Application pending·0 cites
- 1948US2018357168A1Storage medium, data processing method, and cartridge chip using the sameAPEX MICROELECTRONICS CO LTD·Filed 2018·Application pending·0 cites
- 2047US2023350341A1Process cartridgeNINESTAR CORP·Filed 2023·Application pending·0 cites
- 2146US2023014845A1Packaging part, packaging assembly, and chip read write method using packaging partNINESTAR CORP·Filed 2022·Application pending·0 cites
- 2246US2015206039A1Method of transmitting parameter of storage chip of imaging cartridge, storage chip and imaging cartridgeAPEX MICROELECTRONICS CO LTD·Filed 2015·Application pending·0 cites
- 2345US11890874B2Nozzle ink cartridge, circuit substrate, and nozzle ink cartridge assemblyGEEHY MICROELECTRONICS INC·Filed 2020·Granted Feb 6, 2024·0 cites·18 claims
- 2445US9796187B2Method for controlling light emission of ink cartridge, and ink cartridgeZHUHAI NINESTAR MAN CO LTD·Filed 2016·Granted Oct 24, 2017·0 cites·20 claims
- 2545US2014355040A1Method for recording chip usage state information, chip of imaging box and imaging boxAPEX MICROELECTRONICS COMPANY LTD·Filed 2014·Application pending·0 cites
- 2644US10585633B2Method for recording chip usage state information, chip of imaging cartridge and imaging cartridgeAPEX MICROELECTRONICS COMPANY LTD·Filed 2018·Granted Mar 10, 2020·0 cites·15 claims
- 2738US9724928B2Method, system and memory chip for generating checkout valueAPEX MICROELECTRONICS CO LTD·Filed 2015·Granted Aug 8, 2017·0 cites·18 claims
- 2831US9446598B2Method and apparatus for controlling light emission of ink cartridgeZHUHAI NINESTAR MAN CO LTD·Filed 2015·Granted Sep 20, 2016·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →