Tantech Holdings Ltd Announces Notice of Allowance from U.S. Patent and Trademark Office for Hanging Cabinet Design Patent

Rhea-AI Summary

Tantech Holdings (NASDAQ: TANH) said its U.S. unit, Tanhome Group Inc., received a Notice of Allowance from the USPTO on March 25, 2026 for a hanging cabinet design patent application. The patent will proceed to grant after payment of the required issue fee.

The design targets modern residential storage and aligns with Tantech's strategy to expand a green home and building materials ecosystem and grow in North America, strengthening intellectual property protection for cabinets, flooring, and related home products.

Positive

• USPTO issued a Notice of Allowance for hanging cabinet design
• Adds intellectual property protection in cabinet and storage design
• Aligns with green home and building materials strategy
• Supports North American market expansion for home products

Negative

• Patent grant depends on payment of required USPTO issue fee
• No commercial rollout timeline or revenue impact disclosed

News Market Reaction – TANH

+10.81%

7 alerts

+10.81% Session close to close

+27.8% Peak Tracked

-8.5% Trough Tracked

$5.13M Market Cap

1.4x Rel. Volume

In the Mar 25 session, TANH gained 10.81%, reflecting a significant positive market reaction. Argus tracked a peak move of +27.8% during that session. Argus tracked a trough of -8.5% from its starting point during tracking. Our momentum scanner triggered 7 alerts that day, indicating moderate trading interest and price volatility.

Data tracked by StockTitan Argus on the day of publication.

Market Context

The stock surged +10.8% in the session following this news. A strong positive reaction aligns with T...

Analysis

The stock surged +10.8% in the session following this news. A strong positive reaction aligns with Tantech’s ongoing effort to build a differentiated IP base in North America. The new USPTO Notice of Allowance for a hanging cabinet design patent follows the earlier Jan 30, 2026 trademark NOA, reinforcing a pattern of strategic IP steps. Investors would need to weigh this against prior financings and debt‑equity exchanges disclosed in recent 6-K and 20-F/A filings when assessing durability of any outsized move.

Historical Context

1 past event · Latest: Jan 30 (Positive)

Pattern 1 events

Date	Event	Sentiment	24h Move	Catalyst
Jan 30	Trademark IP news	Positive	-12.9%	USPTO Notice of Allowance for "TANHOME" trademark supporting U.S. green home strategy.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Pattern Detected

Available history shows positive U.S. IP news coinciding with double-digit single-day declines.

Recent Company History

Over the past few months, Tantech has focused on building its North American "green home" presence through intellectual property. On Jan 30, 2026, its subsidiary Tanhome Group Inc. received a USPTO Notice of Allowance for the "TANHOME" trademark, supporting brand protection in flooring, cabinets, and related services. Despite that positive strategic step, the stock fell 12.89% over the next 24 hours. Today’s NOA for a hanging cabinet design patent continues the U.S. IP expansion theme, again occurring alongside a double-digit percentage decline.

Key Terms

notice of allowance, uspto, design patent, intellectual property

4 terms

notice of allowance regulatory

"has received a Notice of Allowance (NOA) from the United States Patent and Trademark Office"

A notice of allowance is an official confirmation from a patent office that a patent application has met all necessary requirements and is approved for granting. It signals that the invention is likely to receive legal protection soon, which can be important for investors considering the value and exclusivity of a new product or technology. Think of it as a green light indicating that the invention is on track to become legally protected.

uspto regulatory

"from the United States Patent and Trademark Office (USPTO) for a Hanging Cabinet design patent"

United States Patent and Trademark Office (USPTO) is the federal agency that reviews and issues patents for inventions and registers trademarks for brand names and logos. For investors, USPTO decisions act like a gatekeeper for a company’s legal right to exclude competitors — similar to a property deed for ideas and brands — which can protect revenue, support pricing power, and affect a company’s long‑term value and risk profile.

design patent regulatory

"for a Hanging Cabinet design patent application."

A design patent protects the unique, ornamental look of a product — its shape, surface decoration or overall appearance — rather than how the product works. For investors this matters because control over a product’s distinctive look can preserve brand recognition, support higher prices and create a barrier to copycats, affecting future sales, margins and legal exposure much like owning the exclusive design for a popular piece of consumer packaging or gadget.

intellectual property regulatory

"expected to further strengthen the Company's intellectual property protection in the field of cabinet"

Intellectual property are legal rights that protect creations of the mind—such as inventions, brand names, designs, software, or secret formulas—giving the owner control over who can use, copy or sell them. For investors, IP is like owning a blueprint or recipe: it can generate steady income through exclusive sales or licensing, boost a company’s competitive edge and valuation, and also create costs or risks if rights must be defended or challenged in court.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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LISHUI, China, March 25, 2026 /PRNewswire/ -- Tantech Holdings Ltd (NASDAQ: TANH) (the "Company" or "Tantech"), today announced that its U.S. subsidiary, Tanhome Group Inc., has received a Notice of Allowance (NOA) from the United States Patent and Trademark Office (USPTO) for a Hanging Cabinet design patent application.

The Notice of Allowance indicates that the patent application has successfully passed the USPTO's examination process and, upon payment of the required issue fee, will proceed to the final stage of patent grant.

The hanging cabinet design focuses on innovative storage solutions for modern residential interiors. The design aligns closely with the Company's ongoing strategy to develop a green home and building materials ecosystem. Once officially granted, the patent is expected to further strengthen the Company's intellectual property protection in the field of cabinet and home storage product design.

As part of its North American market strategy, Tantech continues to expand its intellectual property portfolio in cabinets, flooring solutions, and related home products. These initiatives are expected to support the Company's business expansion in environmentally friendly home building materials and integrated interior solutions.

Zheyuan Liu, Chief Executive Officer of Tantech, commented:

"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. As we continue to expand our green home ecosystem and increase our presence in the North American market, protecting product design and technological innovation through patents will remain a key strategic priority for the Company."

Following the payment of the required issue fee and completion of administrative procedures, the patent is expected to be formally granted by the USPTO.

About Tantech Holdings Ltd.

Tantech is a high-tech enterprise specializing in producing, researching and developing bamboo charcoal-based products. With an established domestic and international sales and distribution network, Tantech has been engaged in the manufacture of bamboo charcoal home products since 2002 and entered the home building materials industry in 2024. The company further strengthened its presence in North America through the establishment of its U.S. subsidiary in 2022.

Tantech is ISO 90000 and ISO 14000 certified and has received numerous national, provincial, and municipal honors and awards for its products and R&D achievements.

For more information, please visit: https://tanhtech.com 

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include statements regarding sales, plans, objectives, strategies, future events or performance, and other statements that are not historical facts.

These statements involve various risks and uncertainties, including but not limited to, the demand for and acceptance of the company's products and services, technological changes, economic conditions, the impact of competition and pricing, changes in government regulations, and other risks detailed in the company's filings with the U.S. Securities and Exchange Commission.

All such forward-looking statements (whether made in this press release or elsewhere, whether written or oral, and whether made by or on behalf of the company) are expressly qualified in their entirety by this cautionary statement and any cautionary statements that may accompany the forward-looking statements. The company undertakes no obligation to update any forward-looking statements to reflect events or circumstances occurring after the date of this press release.

Contact:

Tantech Holdings Ltd.
Investor Relations
Phone: +86 (578) 226-2305
Email: ir@tantech.cn  

View original content:https://www.prnewswire.com/news-releases/tantech-holdings-ltd-announces-notice-of-allowance-from-us-patent-and-trademark-office-for-hanging-cabinet-design-patent-302724698.html

SOURCE Tantech Holdings Ltd.

FAQ

What did Tantech (TANH) announce on March 25, 2026 about a patent?

Tantech announced a Notice of Allowance from the USPTO for a hanging cabinet design patent. According to the company, the patent will move to final grant after payment of the required issue fee and completion of administrative steps.

Which Tantech subsidiary received the USPTO Notice of Allowance for TANH?

The Notice of Allowance was issued to Tanhome Group Inc., Tantech's U.S. subsidiary. According to the company, Tanhome filed the hanging cabinet design application focused on modern residential storage solutions.

How does the TANH hanging cabinet patent fit Tantech's strategy?

The patent aligns with Tantech's push to build a green home and building materials ecosystem. According to the company, expanding design IP supports its integrated interior solutions and North American market strategy.

Is the hanging cabinet patent for TANH already granted and enforceable?

Not yet; the USPTO issued a Notice of Allowance, not the final patent grant. According to the company, the patent becomes official after the required issue fee is paid and administrative procedures are completed.

Will the TANH Notice of Allowance immediately increase revenue for Tantech?

No immediate revenue impact was disclosed with the Notice of Allowance. According to the company, the allowance strengthens IP protection but does not include commercial or financial metrics or a rollout timeline.

What are the next steps after the USPTO Notice of Allowance for TANH's design patent?

Tantech must pay the USPTO issue fee and finish administrative formalities for grant to occur. According to the company, payment and procedures will move the application to the final patent grant stage.