Inventor · disambiguated record
Kai Fei
Also filed as: FEI KAI
6 granted patents·1 pending application·20 citations·filing 2012–2024
71Inventor score
Files withAPPLIED PREDICTIVE TECH INC2CHANGZHOU HUADA KEJIE OPTO ELECTRO INSTR CO LTD2CHANGZHOU HUADA KEJIE OPTO ELECTRO INSTR1CHANGZHOU HUADA KEJIE OPTO-ELECTRO INSTRUCTION CO LTD1LEICA GEOSYSTEMS AG1
Top patents by PatentIndex Score
7 records- 0191US10127255B1Computer system and method of initiative analysis using outlier identificationAPPLIED PREDICTIVE TECH INC·Filed 2015·Granted Nov 13, 2018·20 cites·23 claims
- 0261US2024295396A1Construction surface flatness detectorCHANGZHOU HUADA KEJIE OPTO ELECTRO INSTR·Filed 2024·Application pending·0 cites
- 0353US10970263B1Computer system and method of initiative analysis using outlier identificationAPPLIED PREDICTIVE TECH INC·Filed 2018·Granted Apr 6, 2021·0 cites·18 claims
- 0444US10712154B2Laser levelLEICA GEOSYSTEMS AG·Filed 2018·Granted Jul 14, 2020·0 cites·17 claims
- 0544US9316498B2Cross line laserCHANGZHOU HUADA KEJIE OPTO ELECTRO INSTR CO LTD·Filed 2012·Granted Apr 19, 2016·0 cites·8 claims
- 0642US12068570B2Optical path structure and laser light projector using optical path structureCHANGZHOU HUADA KEJIE OPTO ELECTRO INSTR CO LTD·Filed 2020·Granted Aug 20, 2024·0 cites·7 claims
- 0728US9791271B2Window module, a window and laser line projector with the windowCHANGZHOU HUADA KEJIE OPTO-ELECTRO INSTRUCTION CO LTD·Filed 2015·Granted Oct 17, 2017·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →