Changeflow GovPing Pharma & Drug Safety USPTO Patent Granted for Proton Pump Inhibitor ...
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USPTO Patent Granted for Proton Pump Inhibitor and Antacid Formulation

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Published March 24th, 2026
Detected March 25th, 2026
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Summary

The USPTO has granted a new patent (US12582636B2) to HANMI PHARM. CO., LTD. for a pharmaceutical composite formulation containing a proton pump inhibitor and an antacid. This patent covers a specific layered formulation designed for improved drug delivery.

What changed

The United States Patent and Trademark Office (USPTO) has granted patent US12582636B2 to HANMI PHARM. CO., LTD. The patent covers a pharmaceutical composite formulation comprising a proton pump inhibitor in a first layer and an antacid (magnesium hydroxide, magnesium oxide, or a mixture thereof) in a second layer. The filing date for this application was January 22, 2021, and the patent is set to be granted on March 24, 2026.

This patent grant signifies a new intellectual property right for the assignee, potentially impacting market exclusivity for this specific formulation. While this is a patent grant and not a regulatory rule, it is relevant for pharmaceutical companies involved in the development and manufacturing of proton pump inhibitors and antacids. Compliance officers should note this as a development in the competitive landscape for these drug classes. No immediate compliance actions are required by this patent grant itself, but it may influence future product development and market strategies.

Source document (simplified)

← USPTO Patent Grants

Pharmaceutical composite formulation comprising proton pump inhibitor and antacid

Grant US12582636B2 Kind: B2 Mar 24, 2026

Assignee

HANMI PHARM. CO., LTD.

Inventors

Bo Sik Kim, Hyuk Jun Cho, Ho Taek Im, Yong Il Kim

Abstract

An aspect provides a pharmaceutical composite formulation containing: a first layer comprising a proton pump inhibitor or a pharmaceutically acceptable salt thereof as an active ingredient, a disintegrant, and a binder; and a second layer comprising, as an active ingredient, an antacid selected from magnesium hydroxide, magnesium oxide, or a mixture thereof.

CPC Classifications

A61K 9/209

Filing Date

2021-01-22

Application No.

17794178

Claims

7

View original document →

Source

Analysis generated by AI. Source diff and links are from the original.

Classification

Agency
USPTO
Published
March 24th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
US12582636B2

Who this affects

Applies to
Drug manufacturers Pharmaceutical companies
Industry sector
3254 Pharmaceutical Manufacturing
Activity scope
Drug Formulation Pharmaceutical Manufacturing
Geographic scope
United States US

Taxonomy

Primary area
Pharmaceuticals
Operational domain
Legal
Compliance frameworks
FDA 21 CFR Part 11 GxP
Topics
Intellectual Property Product Development

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