New Polymers and Methods Patent Application

ChangeBridge: Patent Apps - Organic Chemistry (C07D)

Published September 25th, 2025

Detected March 26th, 2026

Summary

The USPTO has published a new patent application, US20260085336A1, detailing processes for forming pyridinedicarboxylic acid derivatives and copolymers. The application, filed on September 25, 2025, outlines biocatalytic methods and potential uses for these new materials.

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What changed

This document is a publication of a new patent application (US20260085336A1) by the USPTO. It describes novel processes for synthesizing pyridinedicarboxylic acid (PDCA) monomers and their ester derivatives using biocatalysis, specifically mentioning protocatechuate dioxygenase enzymes. The application also covers the formation and uses of copolymers incorporating these PDCA monomers.

As this is a patent application, it does not impose immediate regulatory obligations or compliance deadlines on regulated entities. However, it signals potential future intellectual property and market developments in the areas of specialty chemicals, polymers, and pharmaceuticals. Companies operating in these sectors should be aware of this filing for competitive intelligence and potential licensing opportunities.

Source document (simplified)

← USPTO Patent Applications

NEW POLYMERS AND METHODS

Application US20260085336A1 Kind: A1 Mar 26, 2026

Inventors

Paul Law, Paul Mines, Timothy Bugg

Abstract

The present invention relates to processes for the formation of pyridinedicarboxylic acid (PDCA), in particular, 2,4-pyridinedicarboxylic acid (2,4-PDCA) and 2,5-pyridinedicarboxylic acid (2,5-PDCA), and mono- and diester derivatives thereof, from 3,4-dihydroxybenzoic acid, via a biocatalytic reaction using, for example, a protocatechuate dioxygenase such as protocatechuate 4,5-dioxygenase or protocatechuate 2,3-dioxygenase, and a nitrogen source. The invention also relates to copolymers that comprise the pyridinedicarboxylic acid monomers and derivatives thereof, processes for the formation of the copolymers and uses for the copolymers.