Inventor · disambiguated record
Xiaofeng Ren
Also filed as: REN XIAOFENG
27 granted patents·1 pending application·1,142 citations·filing 2009–2023
97Inventor score
Files withAMAZON TECH INC23HUAWEI TECH CO LTD2ALIBABA CHINA CO LTD1ALIBABA GROUP HOLDING LTD1REN XIAOFENG1
Top patents by PatentIndex Score
28 records- 0198US10384869B1Optical item management systemAMAZON TECH INC·Filed 2014·Granted Aug 20, 2019·127 cites·20 claims
- 0298US10366306B1Item identification among item variationsAMAZON TECH INC·Filed 2013·Granted Jul 30, 2019·123 cites·24 claims
- 0398US10332066B1Item management system using weightAMAZON TECH INC·Filed 2015·Granted Jun 25, 2019·169 cites·22 claims
- 0498US10169660B1Counting inventory items using image analysisAMAZON TECH INC·Filed 2014·Granted Jan 1, 2019·146 cites·20 claims
- 0598US9996818B1Counting inventory items using image analysis and depth informationAMAZON TECH INC·Filed 2016·Granted Jun 12, 2018·254 cites·24 claims
- 0697US10268983B2Detecting item interaction and movementAMAZON TECH INC·Filed 2013·Granted Apr 23, 2019·134 cites·28 claims
- 0797US10169677B1Counting stacked inventory using image analysisAMAZON TECH INC·Filed 2014·Granted Jan 1, 2019·82 cites·21 claims
- 0896US11080316B1Context-inclusive face clusteringAMAZON TECH INC·Filed 2017·Granted Aug 3, 2021·30 cites·20 claims
- 0993US10671856B1Detecting item actions and inventory changes at an inventory locationAMAZON TECH INC·Filed 2014·Granted Jun 2, 2020·24 cites·12 claims
- 1091US10789483B1Image based inventory item countingAMAZON TECH INC·Filed 2018·Granted Sep 29, 2020·8 cites·20 claims
- 1191US10679177B1Using depth sensing cameras positioned overhead to detect and track a movement of a user within a materials handling facilityAMAZON TECH INC·Filed 2015·Granted Jun 9, 2020·12 cites·20 claims
- 1287US11288539B1Tiered processing for item identificationAMAZON TECH INC·Filed 2020·Granted Mar 29, 2022·2 cites·20 claims
- 1387US10713614B1Weight and vision based item trackingAMAZON TECH INC·Filed 2014·Granted Jul 14, 2020·9 cites·20 claims
- 1485US11526840B2Detecting inventory changesAMAZON TECH INC·Filed 2019·Granted Dec 13, 2022·2 cites·24 claims
- 1584US12190520B2Pyramid architecture for multi-scale processing in point cloud segmentationALIBABA CHINA CO LTD·Filed 2022·Granted Jan 7, 2025·1 cites·20 claims
- 1684US10873726B1Management of sensor failure in a facilityAMAZON TECH INC·Filed 2015·Granted Dec 22, 2020·7 cites·20 claims
- 1783US11663829B1Determining inventory changes at an inventory locationAMAZON TECH INC·Filed 2020·Granted May 30, 2023·1 cites·19 claims
- 1883US10657411B1Item identificationAMAZON TECH INC·Filed 2014·Granted May 19, 2020·6 cites·22 claims
- 1982US11694301B2Learning model architecture for image data semantic segmentationALIBABA GROUP HOLDING LTD·Filed 2020·Granted Jul 4, 2023·2 cites·19 claims
- 2079US12333491B1Determining inventory changes at an inventory locationAMAZON TECH INC·Filed 2023·Granted Jun 17, 2025·0 cites·21 claims
- 2177US12211004B2Detecting inventory changesAMAZON TECH INC·Filed 2022·Granted Jan 28, 2025·0 cites·20 claims
- 2274US11034516B1Generation of footprint data for itemsAMAZON TECH INC·Filed 2019·Granted Jun 15, 2021·1 cites·20 claims
- 2374US9622087B2Spectrum resource sharing method, and base stationHUAWEI TECH CO LTD·Filed 2015·Granted Apr 11, 2017·2 cites·24 claims
- 2468US11568632B1Item identification among a variant of itemsAMAZON TECH INC·Filed 2020·Granted Jan 31, 2023·0 cites·20 claims
- 2559US11412185B1Management of sensor failure in a facilityAMAZON TECH INC·Filed 2020·Granted Aug 9, 2022·0 cites·20 claims
- 2659US10769488B1Item variation managementAMAZON TECH INC·Filed 2019·Granted Sep 8, 2020·0 cites·20 claims
- 2731US2011254516A1Automatic Detection Method and Apparatus for Rotor Initial Position Angle of Double-Fed MachineREN XIAOFENG·Filed 2009·Application pending·0 cites
- 2829US9814061B2Data scheduling method and deviceHUAWEI TECH CO LTD·Filed 2015·Granted Nov 7, 2017·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →