Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Retractable syringe

Retractable syringe

US Patent 5205823 · Granted Apr 27, 1993

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Pre-slit injection site and tapered cannula2003
Pre-slit injection site and tapered cannula2002
Pre-slit injection site and tapered cannula1999
Retractable syringe1998
Pre-slit injection site and tapered cannula1998
Drug infuser1994
Patient-controlled analgesia device1993
Self-driven pump device1992
Passive drug delivery system1991
Adapter for passive drug delivery system1991
Drug delivery apparatus including beneficial agent chamber with chimney for a di1990
Housing enabling passive mixing of a beneficial agent with a diluent1989