Solid Lipid Nanoparticle Curcumin Formulation Patent Granted
Summary
USPTO granted Patent US12599572B2 to Punjab University Chandigarh on April 14, 2026, covering solid lipid nanoparticle formulations of curcumin with particle sizes of 20-800 nm and entrapment efficiency of 50-100%. The patent, filed November 26, 2019, contains 20 claims for a process of preparing and compositions of the nanoparticles showing increased curcumin efficacy.
What changed
USPTO issued Patent US12599572B2 to Punjab University Chandigarh, granting exclusivity for solid lipid nanoparticle curcumin formulations. The patent covers particles sized 20-800 nm with high entrapment efficiency (50-100%) and a process for preparing the nanoparticles. The patent was filed November 26, 2019, and contains 20 claims.
For pharmaceutical companies and researchers in drug delivery, this patent establishes intellectual property barriers for similar solid lipid nanoparticle curcumin formulations in the US market. Parties developing competing products should evaluate potential licensing needs or design-around strategies to avoid infringement.
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Apr 14, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Solid lipid nanoparticles of curcumin
Grant US12599572B2 Kind: B2 Apr 14, 2026
Assignee
Punjab University Chandigarh
Inventors
Indu Pal Kaur, Vandita Kakkar, Simarjot Kaur Sandhu, Tanvi Gupta
Abstract
Provided herein is a process for preparing solid lipid nanoparticles of curcumin. Also provided herein are solid lipid nanoparticles of curcumin having a particle size in the range of 20-800 nm. The solid lipid nanoparticles of curcumin show a very high entrapment efficiency of curcumin in the range of 50-100% in terms of actual curcumin content of the formulation. The solid lipid nanoparticles of curcumin show increased efficacy of the curcumin.
CPC Classifications
A61K 9/5123 A61K 9/5192 A61K 31/12 A61K 36/9066 A61K 9/51 B82Y 5/00
Filing Date
2019-11-26
Application No.
17439617
Claims
20
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Source
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