Inventor · disambiguated record

John Chang

Also filed as: CHANG JOHN · CHANG JOHN F

1 granted patent·1 pending application·18 citations·filing 2012–2024

39Inventor score

Technology areasG01C G03F

Files withGEEN JOHN A1 ONTO INNOVATION INC1

Top patents by PatentIndex Score

2 records

0184US9212908B2MEMS gyroscopes with reduced errorsGEEN JOHN A·Filed 2012·Granted Dec 15, 2015·18 cites·61 claims
0266US2025355368A1Metrology to reduce overlay errorONTO INNOVATION INC·Filed 2024·Application pending·0 cites

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