DH

Dongcheng HAN

📍 Daguantang, CN: #24 of 243 inventorsTop 10%
Overall (2025): #129,708 of 469,880Top 30%
2
Patents 2025

Issued Patents 2025

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12399365 Optical waveguide unit, array, and flat lens Chao Fan 2025-08-26
12230935 Air ionization display device Chao Fan 2025-02-18