Inventor · disambiguated record

David Y. Sim

Also filed as: SIM DAVID Y

1 granted patent·1 pending application·3 citations·filing 20122014

20Inventor score
Technology areasE21B
Files withSCHRAMM INC1SIM DAVID Y1

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2 records

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →