Inventor
BELL JON S
US4 patents
Patents
4 patentsUS5487733AJan 30, 1996
Assembly with collapsible sheath and tip guard
BECTON DICKINSON CO173 citations97
US6183440B1Feb 6, 2001
Hypodermic syringe having a selectively retractable needle
BECTON DICKINSON CO94 citations95
US5273543ADec 28, 1993
Safety needle syringe
BECTON DICKINSON CO62 citations93
US5512050AApr 30, 1996
Needle assembly with collapsible and retractable sheath
BECTON DICKINSON CO32 citations91