Inventor
XU QIHUA
US15 patents
⚠️ This page may combine multiple inventors who share the name “XU QIHUA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BECTON DICKINSON CO
7 patentsUS10835681B2Nov 17, 2020
Time-of-use activated syringe stopper
BECTON DICKINSON CO2 citations71
US10549242B2Feb 4, 2020
Plasma extractor
BECTON DICKINSON CO1 citations62
US10709370B2Jul 14, 2020
Biological fluid separation device
BECTON DICKINSON CO1 citations60
US11344851B2May 31, 2022
Biological fluid separation device
BECTON DICKINSON CO0 citations58
US10493409B2Dec 3, 2019
Biological fluid separation device
BECTON DICKINSON CO1 citations58
US12521049B2Jan 13, 2026
Biological fluid separation device
BECTON DICKINSON CO0 citations51
US11344849B2May 31, 2022
Filtration cell and method for filtering a biological sample
BECTON DICKINSON CO0 citations51