Can You Renew a Patent?

You spent years developing your invention, filed your application, and finally received that long-awaited patent grant. Now the question on your mind is simple but important. Can you renew a patent once its term runs out?

The short answer is no, you cannot renew a patent in the same way you renew a driver's license or a trademark. However, the longer answer involves patent maintenance fees, term adjustments, and a few strategic workarounds that every inventor and business owner should understand. Let's break it all down.

Understanding the Lifespan of a Patent

Before discussing renewal, it helps to know how long a patent actually lasts. In the United States, the term depends on the type of patent you hold, and each category follows its own rules under federal law.

A utility patent, which is the most common type, lasts 20 years from the earliest filing date. A design patent protects the ornamental appearance of an object and stays in force for 15 years from the grant date. A plant patent also runs for 20 years from filing.

Once that statutory term ends, your exclusive rights disappear, and the invention enters the public domain. At that point, anyone can manufacture, use, or sell your creation without seeking permission or paying royalties.

So, Can You Actually Renew a Patent?

Here is where most inventors get confused. A patent cannot be renewed after its full term expires, but utility patent holders must pay patent maintenance fees to keep the patent enforceable during its life. Many people informally call these "renewal fees," but they are technically not the same thing.

The USPTO requires three maintenance fee payments at specific intervals. These are due at 3.5 years, 7.5 years, and 11.5 years after the patent is granted. Miss any of these deadlines, and your patent will lapse early, which is a costly mistake to avoid.

Design patents and plant patents, on the other hand, do not require maintenance fees at all. Once granted, they remain in force for their full term without any additional payments.

What Happens If You Miss a Maintenance Fee Deadline?

Missing a payment does not always mean immediate disaster. The USPTO offers a six-month grace period after each due date, during which you can still pay the fee along with a surcharge. After the grace period closes, the patent is officially considered lapsed.

If your patent has already expired due to a missed payment, you may still have a chance to revive it through a petition for reinstatement. To qualify, you must demonstrate that the failure to pay was unintentional, submit the overdue fee, and pay the required petition fee.

The USPTO reviews these petitions carefully, especially if more than two years have passed since the lapse. The longer you wait, the harder it becomes to justify the delay, so acting quickly is critical.

Are There Any Ways to Extend a Patent Term?

While outright renewal is not allowed, the law does provide for limited patent term extensions in specific circumstances. These extensions are statutory, narrowly defined, and not available to every patent holder.

The first option is Patent Term Adjustment (PTA), which compensates inventors when the USPTO causes delays during examination. If the agency takes longer than the statutory timeline to issue your patent, you receive additional days added to your term automatically.

The second option is Patent Term Extension (PTE), which applies primarily to pharmaceutical products and medical devices that face regulatory review delays at the FDA. These extensions can add up to five years of protection, depending on the case.

Strategic Alternatives to Patent Renewal

If your patent is approaching the end of its term, all hope is not lost. Smart inventors and businesses use portfolio strategies to maintain a competitive edge long after the original patent expires.

One common approach is filing a continuation application or a continuation-in-part to protect improvements or modifications. If your invention has evolved meaningfully, these new applications can secure fresh patent rights on the updated features.

Another option is leveraging other forms of intellectual property protection. Trade secrets can last indefinitely as long as confidentiality is maintained, and trademarks can protect your brand identity and product reputation forever, provided they remain in use.

Why Working with an Experienced Patent Attorney Matters?

The rules around patent maintenance, lapses, and reinstatement are highly technical, and small errors can have permanent consequences. A missed deadline or an incomplete petition can mean losing rights that took years and significant investment to secure.

Working with a registered patent attorney ensures that your IP portfolio is monitored, deadlines are tracked, and strategic decisions are made well before any critical dates. From patent prosecution to IP due diligence and portfolio management, professional guidance protects the long-term value of your inventions.

Our team at Sleman & Lund LLP supports independent inventors, startups, and established corporations with full-service intellectual property representation. We help clients navigate maintenance obligations, plan continuation filings, and explore every available protection strategy.

FAQs

1. Can I renew an expired patent after 20 years? 

No. Once a utility patent reaches the end of its 20-year term with all fees paid, it cannot be renewed, and the invention enters the public domain permanently.

2. How much do patent maintenance fees cost? 

Maintenance fees increase at each interval and vary based on entity size. As a general reference, large entities currently pay approximately $2,000 at the 3.5-year stage, $3,760 at the 7.5-year stage, and $7,700 at the 11.5-year stage. 

Small entities and micro entities pay significantly reduced rates. Current exact amounts are published on the USPTO Fee Schedule and should be verified before payment as fees are periodically adjusted.

3. What is the difference between patent renewal and maintenance? 

Renewal implies extending the patent past its statutory term, which is generally not allowed. Maintenance refers to keeping a granted patent in force during its 20-year term through periodic fee payments.

4. Can a lapsed patent be reinstated? 

Yes, in limited cases. You can file a petition with the USPTO demonstrating that the delay in payment was unintentional, along with the overdue fee and petition fee. Approval is not guaranteed.

5. Do design and plant patents need to be renewed? 

No. Design patents and plant patents do not require maintenance fee payments. They remain valid for their full term once granted, with no additional renewals needed.

Secure Your Innovation with the Right Legal Partner

Your invention represents hard work, creativity, and real investment, so do not leave its

protection to chance. Whether you are facing an upcoming maintenance deadline, exploring continuation filings, or rebuilding a lapsed patent, having experienced counsel by your side makes all the difference.

Reach out to our intellectual property lawyers today and let us help you safeguard what you have built. From patent drafting and patent searching to license negotiation and ongoing portfolio support, we are ready to put our expertise to work for you. Contact us now to schedule your consultation and take the next confident step toward protecting your innovation for years to come.