Inventor · disambiguated record
David Lei Ma
Also filed as: LEI MA DAVID
8 granted patents·2 pending applications·4 citations·filing 2018–2025
75Inventor score
Top patents by PatentIndex Score
10 records- 0182US11346290B2Speed limiting for power turbine governing and protection in a turboshaft engineUNITED TECHNOLOGIES CORP·Filed 2020·Granted May 31, 2022·2 cites·11 claims
- 0281US11519289B2Systems and methods for hybrid electric turbine enginesUNITED TECHNOLOGIES CORP·Filed 2019·Granted Dec 6, 2022·2 cites·20 claims
- 0373US2025271142A1Hydrogen liquid oxygen combined cycle engineRTX CORP·Filed 2025·Application pending·0 cites
- 0472US11976633B2Systems and methods for optimal speed protection for power turbine governingRAYTHEON TECH CORP·Filed 2021·Granted May 7, 2024·0 cites·11 claims
- 0570US12259134B2Hydrogen liquid oxygen combined cycle engineRAYTHEON TECH CORP·Filed 2023·Granted Mar 25, 2025·0 cites·19 claims
- 0663US11555455B2Adaptive model predictive control for hybrid electric propulsionUNITED TECHNOLOGIES CORP·Filed 2020·Granted Jan 17, 2023·0 cites·19 claims
- 0757US11092136B2Systems and methods for optimal speed protection for power turbine governingUNITED TECHNOLOGIES CORP·Filed 2018·Granted Aug 17, 2021·0 cites·11 claims
- 0852US11802508B2Efficient turbine engine using integrated ammonia fuel processingRAYTHEON TECH CORP·Filed 2022·Granted Oct 31, 2023·0 cites·18 claims
- 0950US11912423B2Hydrogen steam and inter-cooled turbine engineRTX CORP·Filed 2022·Granted Feb 27, 2024·0 cites·20 claims
- 1044US2024102416A1Steam injected inter-turbine burner engineRAYTHEON TECH CORP·Filed 2022·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →