en.Wedoany.com Reported - Zentek Ltd. announced that the United States Patent and Trademark Office has granted U.S. Patent No. 12,616,206, covering the foundational graphene-based technology of the company's ZenGUARD™ platform.
The patent's enforcement term is extended by 327 days due to examination delays. The patent is owned by Zentek Ltd., with Dr. Seyyedarash Haddadi named as the lead inventor, along with other co-inventors. This new patent strengthens the company's intellectual property protection for ZenGUARD™, complementing the issued Canadian patent, which covers personal protective equipment and heating, ventilation, and air conditioning (HVAC) applications, including the ZenGUARD™ enhanced air filters announced by the company on May 6, 2026, now available for sale in Canada.
The United States is one of the largest HVAC air filtration markets globally, with a market size several times that of Canada. In 2025, the U.S. air filter market was estimated at approximately $5.3 billion. Industry estimates indicate that about 30% of HVAC energy consumption is used to overcome resistance from air filters. The ZenGUARD™ enhanced air filter is a graphene-based technology designed to provide superior indoor air quality without increasing energy consumption. The company continues to evaluate U.S. regulatory requirements, including EPA registration, while collaborating with its U.S. manufacturing and distribution partner, Quality Filters Inc. (headquartered in Robertsdale, Alabama), to explore market entry opportunities.
The granting of this U.S. patent expands Zentek's intellectual property portfolio in its graphene-based and advanced materials platform, which underpins the ZenGUARD™ and Triera businesses. Each newly issued patent extends the protection period and geographic coverage of the technologies the company is advancing toward commercialization.
Zentek CEO Mohammed (Moe) Jiwan stated that the U.S. and Canadian patents together protect the ZenGUARD™-based graphene indoor air quality technology, covering the company's two priority geographic regions. He noted that ZenGUARD™ was developed in response to specific market demands, aiming to significantly improve indoor air quality in commercial and institutional buildings without increasing energy consumption. As the U.S. regulatory pathway becomes clearer, the company will continue to advance the commercialization of ZenGUARD™ alongside Quality Filters Inc.
Zentek Ltd. is a Canadian intellectual property development and commercialization company focused on advancing graphene-based and advanced materials technologies, with core platforms including Albany Graphite, ZenGUARD™, and Triera. Albany is the company's critical mineral asset, currently undergoing a preliminary economic assessment targeted for completion in the summer of 2026.
For more information, contact Zentek Ltd. CEO Mohammed (Moe) Jiwan at 416-709-8876, email: mjiwan2@zentek.com, or visit the company's website: www.zentek.com.
This article is compiled by Wedoany. All AI citations must indicate the source as "Wedoany". If there is any infringement or other issues, please notify us promptly, and we will modify or delete it accordingly. Email: news@wedoany.com
