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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12539362 B1

PDFFull Text
Date of Patent:
Feb. 03, 2026

Filed:

Feb. 27, 2023

Liquid medicine injection device, drug injection device, and method for determining remaining amount of drug thereof

Applicant:

Ipv, Seoul, KR;

Inventors:

Seungha Kim, Goyang-si, KR;

Kiung Kim, Incheon, KR;

Wonkyung Bang, Seoul, KR;

Seonhwan Kim, Seongnam-si, KR;

Dae Jong Park, Seoul, KR;

Jesse Jaejin Kim, Seongnam-si, KR;

Assignee:

IPV, Seoul, KR;

Attorneys:

Dinsmore & Shohl LLP

Yongsok Choi, Esq.

Primary Examiner:

Jason E Flick

Int. Cl.
CPC ...
A61M 5/168 (2006.01); A61M 5/142 (2006.01); A61M 5/145 (2006.01); A61M 5/158 (2006.01); A61M 5/172 (2006.01);
U.S. Cl.
CPC ...
A61M 5/1684 (2013.01); A61M 5/14244 (2013.01); A61M 5/145 (2013.01); A61M 5/158 (2013.01); A61M 5/172 (2013.01); A61M 2202/0486 (2013.01); A61M 2205/3576 (2013.01);
Abstract

Provided is a medical liquid injection device including a base body, a needle assembly mounted on the base body, a reservoir fluidly connected to the needle assembly and having an inner space in which a medical liquid is stored, a plunger disposed inside the reservoir, and configured to move in a longitudinal direction of the reservoir according to an amount of the medical liquid stored in the reservoir, and a first sensor unit configured to measure the amount of the medical liquid stored in the reservoir according to the movement of the plunger.

Find Patent Forward Citations

Kim, Seungha. (2026). Liquid medicine injection device, drug injection device, and method for determining remaining amount of drug thereof (U.S. Patent No. 12539362). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12539362

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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