Inventor

YAN YIFAN

US3 patents

⚠️ This page may combine multiple inventors who share the name “YAN YIFAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHINA PETROLEUM & CHEMICAL

1 patent

US7332562B2Feb 19, 2008

Biodegradable linear random copolyester and process for preparing it and use of the same

CHINA PETROLEUM & CHEMICAL18 citations79

US NAVY

1 patent

US11519091B2Dec 6, 2022

Bathless metal-composite electroplating

US NAVY0 citations52

SHENZHEN FRIME COSMETIC TECH CO LTD

1 patent

USD1109539SJan 20, 2026

Makeup brush handle

SHENZHEN FRIME COSMETIC TECH CO LTD0 citations47