Inventor · disambiguated record
Hsia-Hao Chang
Also filed as: CHANG HSIA-HAO
1 granted patent·4 pending applications·0 citations·filing 2013–2024
7Inventor score
Files withBENQ MATERIALS CORP5
Top patents by PatentIndex Score
5 records- 0159US2025262342A1Contact lens packaging solution and contact lens product comprising the sameBENQ MATERIALS CORP·Filed 2024·Application pending·0 cites
- 0243US2020110283A1Colorant composition for colored silicone hydrogel contact lens, a colored silicone hydrogel contact lens comprising the same and a method of modifying a colorant for a colored silicone hydrogel contact lensBENQ MATERIALS CORP·Filed 2019·Application pending·0 cites
- 0341US9085697B2Polymerizable yellow dye for manufacturing ophthalmic lensBENQ MATERIALS CORP·Filed 2013·Granted Jul 21, 2015·0 cites·9 claims
- 0438US2020109275A1Colorant composition for a colored contact lens, a colored contact lens comprising the same and a method of modifying a colorant for a colored contact lensBENQ MATERIALS CORP·Filed 2019·Application pending·0 cites
- 0528US2015338681A1Method for manufacturing a colored contact lensBENQ MATERIALS CORP·Filed 2015·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Hsia-Hao Chang 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 →