Inventor · disambiguated record
Chang Yup An
Also filed as: AN CHANG YUP
2 granted patents·1 pending application·0 citations·filing 2014–2017
22Inventor score
Top patents by PatentIndex Score
3 records- 0126US2016091129A1Expansion joint of underground piping having automatic locking stopper attached theretoJOINT YOOCHANG THERMAL SYSTEMS CO LTD·Filed 2014·Application pending·0 cites
- 0223US10400927B2Earthquake-resistant flexible slip joint apparatusAN CHANG YUP·Filed 2017·Granted Sep 3, 2019·0 cites·6 claims
- 0322US10253896B2Packing cylinder for expansion jointJOINT YOOCHANG THERMAL SYSTEMS CO LTD·Filed 2015·Granted Apr 9, 2019·0 cites·15 claims
Join the waitlist — get patent alerts
Get an alert when Chang Yup An 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 →