Inventor · disambiguated record
Lingfeng Cheng
Also filed as: CHENG LINGFENG
3 granted patents·25 citations·filing 2016–2022
65Inventor score
Top patents by PatentIndex Score
3 records- 0188US11450225B1Machine grading of short answers with explanationsQUIZLET INC·Filed 2021·Granted Sep 20, 2022·19 cites·20 claims
- 0269US10409866B1Systems and methods for occupation normalization at a job aggregatorGLASSDOOR INC·Filed 2016·Granted Sep 10, 2019·6 cites·18 claims
- 0362US11990058B2Machine grading of short answers with explanationsQUIZLET INC·Filed 2022·Granted May 21, 2024·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →