What Is a Patent Pending?

Patent pending means a patent application has been filed for an invention but no patent has been granted, so it gives notice but no enforceable patent rights yet.

Category: Legal and IP · Reviewed 11 November 2026 · 2 min read

How it works

A person can say an invention is patent pending, or patent applied for, once a patent application, including a provisional application, has been filed with the USPTO. The phrase is a notice. It tells the public that an application exists, and it can discourage some copying, but it does not give the owner a patent to enforce.

The phrase should only be used when an application is actually pending. Using it falsely, for example when no application has been filed or when an application has been abandoned, can create legal problems. It also does not mean that a patent will be granted, and some pending applications are rejected or abandoned.

Example

For example, an inventor files a provisional application for a kitchen gadget, then prints "patent pending" on the packaging. Competitors who see the label know an application exists, but if the inventor lets the provisional lapse without filing a nonprovisional application, the label should come off.

Why founders care

Patent pending language can signal seriousness to customers and investors and reflects an early filing date. Its value is limited. A pending application is not published right away in many cases, and while pending, the owner generally cannot sue for patent infringement. Different rules govern what protection, if any, exists before the patent issues.

Common mistakes

• Using the phrase without having filed anything.
• Continuing to use it after an application is abandoned or expires.
• Treating it as proof an invention is protected.
• Assuming it applies in other countries without foreign filings.

Frequently asked questions

What does patent pending mean?

It means a patent application has been filed but no patent has been granted. It gives notice to others, but the owner has no enforceable patent rights from the pending status alone.

Can I say patent pending with a provisional application?

Generally yes, once a provisional application has been filed, the invention can be described as patent pending while that application is pending. When the provisional expires without a follow-up filing, the claim should stop.

Related terms

• Provisional Patent Application
• Utility Patent
• Prior Art
• Trade Secret
• Trademark

Go deeper

• Provisional Patent Application: A Startup Guide IP guideHow a provisional patent application works for startups: the 12-month deadline, what it protects, patent pending meaning, and provisional vs nonprovisional.
• Do I Need a Patent for My App? A Founder's Guide IP guideDo I need a patent for my app? Learn what software patents cover, why eligibility is a hard question, and what protects an app without one.

All 70 startup terms · More terms starting with P · Guides

General information, not legal, tax or financial advice. Reviewed 11 November 2026.