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.

Date of Patent:
Sep. 16, 2025

Filed:

Feb. 22, 2022
Applicant:

Sml Biopharm Co., Ltd., Gwangmyeong-si, KR;

Inventors:

Eun Kyoung Bang, Seoul, KR;

Gyo Chang Keum, Seoul, KR;

Taek Kang, Seoul, KR;

Byung Sun Jeon, Seoul, KR;

An Soo Lee, Seoul, KR;

Jae Hwan Nam, Bucheon-si, KR;

Seo Hyeon Bae, Gimhae-si, KR;

Assignee:

SML BIOPHARM CO., LTD., Gyeonggi-Do, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 9/16 (2006.01); B82Y 5/00 (2011.01);
U.S. Cl.
CPC ...
A61K 9/1623 (2013.01); B82Y 5/00 (2013.01);
Abstract

Disclosed is a novel composition of lipid nanoparticles for stabilizing a nucleic acid drug and enhancing delivery in vivo. Lipid nanoparticles include a nucleic acid drug and a lipid, and the nucleic acid includes all of mRNA-based vaccines, RNA for immune boosters, miRNA, siRNA, pDNA, antisense ODN, and pDNA. The lipid of nanoparticles includes a trehalose-based lipid, an ionizable lipid, a phospholipid, a PEG-lipid, and a structure-maintaining lipid. The structure-maintaining lipid provides a composition that can replace commonly used cholesterol with a lithocholic acid derivative, a glycyrrhetinic acid derivative, or a diosgenin derivative. The lipid nanoparticles can be used as a vaccine or therapeutic agent, depending on the type of nucleic acid drug that is used.


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