Patent Application for Microstructure Array Delivering Active Agents

ChangeBridge: Patent Apps - Medical Devices (A61M)

Published March 26th, 2026

Detected March 26th, 2026

Summary

The USPTO has published a patent application (US20260083948A1) for a microstructure array designed for delivering active agents through the skin. The application details a formulation comprising dissolving microstructures attached to a base, intended for transdermal drug delivery.

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What changed

This document is a published patent application from the USPTO detailing a novel microstructure array for transdermal delivery of active agents. The application, filed under application number 19202874, describes a system with dissolving microstructures containing active agents in a biocompatible matrix, designed to penetrate the skin and release the agent. It also covers related formulations, preparation methods, and administration techniques.

While this is a patent application and not a regulatory rule, it signifies potential future product development in the pharmaceutical and medical device sectors. Companies involved in transdermal drug delivery, microneedle technology, or active agent formulations should be aware of this innovation as it may influence future product pipelines and intellectual property landscapes. No immediate compliance actions are required, but monitoring patent filings is crucial for competitive intelligence and R&D strategy.

Source document (simplified)

← USPTO Patent Applications

MICROSTRUCTURE ARRAY FOR DELIVERY OF ACTIVE AGENTS

Application US20260083948A1 Kind: A1 Mar 26, 2026

Inventors

Guohua CHEN, Sahitya Katikaneni, Esi Ghartey-Tagoe, Parminder Singh

Abstract

Provided herein is a microstructure array comprising a plurality of dissolving microstructures such as microprojections attached to a base. The plurality of microstructures comprise an active agent in a biocompatible and water-soluble matrix, where the water-soluble matrix preferably comprises a polysaccharide polymer and a sugar alcohol, and the base typically comprises a non-water soluble matrix. The plurality of microstructures, upon penetration of the subject's skin, undergo dissolution to deliver the active agent. Also provided are related microstructure formulations, in dried and liquid form, methods for preparing the above-described microstructure arrays, and methods for administering an active agent by application of a microstructure array as provided herein to a subject's skin, among other features.

CPC Classifications

A61M 37/0015 A61K 9/0021 A61K 39/00 A61K 47/34 A61K 47/36 B29C 33/424 B29C 39/003 B29C 39/025 B29C 39/10 B29C 43/003 B29C 43/021 B29C 43/20 A61M 2037/0023 A61M 2037/0046 A61M 2037/0053 B29C 2043/026 B29K 2105/0035 B29K 2883/00 B29L 2031/7544 B29L 2031/756