Inventor · disambiguated record
Dongcheng Han
Also filed as: HAN DONGCHENG
6 granted patents·3 pending applications·0 citations·filing 2020–2025
64Inventor score
Files withANHUI EASPEED TECH CO LTD7ANHUI DONGCHAO SCIENCE AND TECH COMPANY LIMITED1ANHUI DONGCHAO SCIENCE AND TECH COMPANY LTD1
Top patents by PatentIndex Score
9 records- 0175US2025347918A1Optical waveguide unit, array, and flat lensANHUI EASPEED TECH CO LTD·Filed 2025·Application pending·0 cites
- 0263US12399365B2Optical waveguide unit, array, and flat lensANHUI EASPEED TECH CO LTD·Filed 2021·Granted Aug 26, 2025·0 cites·14 claims
- 0362US2025149846A1Air ionization display deviceANHUI EASPEED TECH CO LTD·Filed 2025·Application pending·0 cites
- 0461US12230935B2Air ionization display deviceANHUI EASPEED TECH CO LTD·Filed 2021·Granted Feb 18, 2025·0 cites·18 claims
- 0553US2024027787A1View field control apparatus applied in optical imaging system and optical imaging systemANHUI EASPEED TECH CO LTD·Filed 2023·Application pending·0 cites
- 0650US11977245B2Optical waveguide unit, array, and flat lensANHUI EASPEED TECH CO LTD·Filed 2021·Granted May 7, 2024·0 cites·15 claims
- 0745US11092888B2Processing method for multi-row, multi-column flat lens with equivalent negative refractive indexANHUI DONGCHAO SCIENCE AND TECH COMPANY LTD·Filed 2021·Granted Aug 17, 2021·0 cites·6 claims
- 0843US11982838B2Optical lensANHUI EASPEED TECH CO LTD·Filed 2021·Granted May 14, 2024·0 cites·11 claims
- 0938US11977242B2Processing technology for single-column and multi-row equivalent negative refractive index plate lensANHUI DONGCHAO SCIENCE AND TECH COMPANY LIMITED·Filed 2020·Granted May 7, 2024·0 cites·9 claims
Join the waitlist — get patent alerts
Get an alert when Dongcheng Han 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 →