Inventor

YUN JONG DEOK

KR7 patents

Patents

7 patents

US12427263B2Sep 30, 2025

Drug injection control device having structure in which rod lock screw-coupled to piston rod can make linear motion under restricted rotation within rod holder

POONGLIM PHARMATECH INC2 citations68

US12415035B2Sep 16, 2025

Drug injection control device for temporarily maintaining twist of torsion spring to which rotational force is applied through dose dial

POONGLIM PHARMATECH INC2 citations68

US12576216B2Mar 17, 2026

Disposable injection device with locking structure to prevent reuse

POONGLIM PHARMATECH INC0 citations47

US12569623B2Mar 10, 2026

Drug injection control device having stable operation structure of injection button through button plate positioned in dose dial

POONGLIM PHARMATECH INC0 citations45

US12036397B2Jul 16, 2024

Luer-lock fastening needle hub

POONGLIM PHARMATECH INC0 citations44

US11944797B2Apr 2, 2024

Device for adjusting tightening angle of needle safety protector

POONGLIM PHARMATECH INC0 citations44

US11752270B2Sep 12, 2023

Syringe with plunger reaction pressure reduction structure

POONGLIM PHARMATECH INC0 citations44