Inventor · disambiguated record
Pi-Chun Yu
Also filed as: YU PI-CHUN
6 granted patents·2 pending applications·51 citations·filing 2009–2025
78Inventor score
Technology areasH10P
Top patents by PatentIndex Score
8 records- 0183US2025299980A1Method for etching etch layerTAIWAN SEMICONDUCTOR MFG CO LTD·Filed 2025·Application pending·0 cites
- 0282USD597811SPlier devicePACIFIC PROFESSIONAL TOOL COMP·Filed 2009·Granted Aug 11, 2009·37 cites·1 claims
- 0381US12362203B2Method for etching etch layerTAIWAN SEMICONDUCTOR MFG CO LTD·Filed 2023·Granted Jul 15, 2025·0 cites·20 claims
- 0476US2025385096A1Wet bench process with in-situ pre-treatment operationTAIWAN SEMICONDUCTOR MFG CO LTD·Filed 2025·Application pending·0 cites
- 0567US12347692B2Wet bench process with in-situ pre-treatment operationTAIWAN SEMICONDUCTOR MFG CO LTD·Filed 2022·Granted Jul 1, 2025·0 cites·19 claims
- 0662US11784065B2Method for etching etch layerTAIWAN SEMICONDUCTOR MFG CO LTD·Filed 2019·Granted Oct 10, 2023·0 cites·20 claims
- 0762USD613568SRatchet wrenchPACIFIC PROFESSIONAL TOOL COMP·Filed 2009·Granted Apr 13, 2010·14 cites·1 claims
- 0853US10283384B2Method for etching etch layer and wafer etching apparatusTAIWAN SEMICONDUCTOR MFG CO LTD·Filed 2015·Granted May 7, 2019·0 cites·20 claims
Join the waitlist — get patent alerts
Get an alert when Pi-Chun Yu files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →