Tantech Holdings Ltd (NASDAQ: TANH) announced that its U.S. subsidiary, Tanhome Group Inc., received a Notice of Allowance from the United States Patent and Trademark Office for a hanging cabinet design patent application.

The Notice of Allowance indicates the patent application passed the USPTO examination process and will proceed to final patent grant upon payment of the required issue fee. The hanging cabinet design focuses on storage solutions for residential interiors.

The patent application is part of Tantech's North American market strategy to expand its intellectual property portfolio in cabinets, flooring solutions, and home products. The company stated these initiatives support its business expansion in home building materials and interior solutions.

"Receiving the Notice of Allowance from the United States Patent and Trademark Office marks another important milestone in strengthening the Company's intellectual property portfolio for innovative home products," said Zheyuan Liu, Chief Executive Officer of Tantech.

The patent is expected to be formally granted by the USPTO following payment of the issue fee and completion of administrative procedures.

Tantech specializes in bamboo charcoal-based products and has manufactured bamboo charcoal home products since 2002. The company entered the home building materials industry in 2024 and established its U.S. subsidiary in 2022.