Canadian materials technology company Zentek said it has been granted a patent for an electromagnetic interference (EMI) shielding coating designed for electronic devices and defense applications.
The patent, filed with the United States Patent and Trademark Office, covers a proprietary composite material that blocks electromagnetic signals while maintaining thermal conductivity. Zentek stated the coating is intended for use in smartphones, medical devices, aerospace components and military equipment where signal integrity and protection from interference are critical.
The Toronto-based company, which trades on the TSX Venture Exchange under the ticker ZEN, did not disclose financial terms related to the patent or potential commercialization timelines. Zentek develops advanced materials for industrial and defense markets, with prior projects including graphene-based technologies and antimicrobial coatings.
The EMI shielding sector has grown alongside the expansion of 5G networks, IoT devices and high-frequency electronics, where electromagnetic interference can degrade performance or pose security risks. Competitors in the space include DuPont, 3M and specialized firms like Laird Technologies, now part of Molex.
Zentek’s patent approval follows a period of increased investor focus on materials science and defense-related technologies amid geopolitical tensions and supply chain concerns in advanced manufacturing.
