Inventor

QIAN BIAN

US3 patents

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

BECKMAN COULTER INC

2 patents

US10429401B2Oct 1, 2019

Methods and systems for tube inspection and liquid level detection

BECKMAN COULTER INC5 citations65

US12452532B2Oct 21, 2025

Focus quality determination through multi-layer processing

BECKMAN COULTER INC0 citations44

IRIS INT INC

1 patent

US10705011B2Jul 7, 2020

Dynamic focus system and methods

IRIS INT INC15 citations82