ALEXANDRIA, Va., July 21 -- United States Patent no. 12,685,823, issued on July 21, was assigned to Becton Dickinson and Co. (Franklin Lakes, N.J.).

"Medicament filling system" was invented by Bo Yang Yu (Winchester, Mass.), Bradley Wilkinson (North Haledon, N.J.), Bart Peterson (Farmington, Utah) and Mark Newby (Kamas, Utah).

According to the abstract* released by the U.S. Patent & Trademark Office: "A syringe assembly (2) that locks a syringe (10) to prevent backflow of medicament, the syringe assembly (2) comprising a syringe (10) including a barrel (12) configured to carry the medicament, a plunger (14) that communicates with the barrel (12), and a plunger head (16) disposed on a proximal end of the plunger (14), and a locking assembl...