Inventor · disambiguated record
Zhi-Yong Chang
Also filed as: CHANG ZHI · CHANG ZHI-YONG
2 granted patents·7 citations·filing 2002–2017
45Inventor score
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2 records- 0152US7018929B2Method for reducing a low volatility byproduct from a wafer surface following an etching processTAIWAN SEMICONDUCTOR MFG·Filed 2002·Granted Mar 28, 2006·7 cites·20 claims
- 0244US10550688B2Apparatus for physical simulation experiment for fracturing in horizontal well layer by layer by spiral perforation and method thereofCHINA UNIV OF PETROLEUM—BEIJING·Filed 2017·Granted Feb 4, 2020·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →