Trade Secret vs. Patent: How to Choose the Right Protection

Not every valuable innovation needs to be patented. Some of the most important business assets in the United States are protected as trade secrets instead, and many companies use both forms of protection for different parts of the same product. Choosing between a trade secret and a patent is a strategic decision that depends on what the innovation is, how easily others could discover it and how long it is likely to remain valuable.

What a patent protects

A U.S. utility patent gives its owner the right to exclude others from making, using, offering for sale, selling or importing the claimed invention. In exchange for that right, the inventor must disclose the invention to the public. Under 35 U.S.C. 112(a), discussed in MPEP 2161, the specification must describe the invention and explain how to make and use it in enough detail that a skilled person could do so.

Patent rights are limited in time. As explained in MPEP 2701, a utility patent generally expires 20 years from the filing date of the earliest U.S. nonprovisional application on which it relies, subject to certain adjustments and extensions. After expiration, anyone may use the invention. The USPTO's Patent Basics page is a useful overview, and our guide How to Patent an Idea walks through the process step by step.

What a trade secret protects

A trade secret is information that has value because it is not generally known and that its owner takes reasonable steps to keep confidential. Under the federal definition in 18 U.S.C. 1839, trade secrets can include financial, business, scientific, technical, economic or engineering information, such as formulas, methods, techniques, processes, procedures, programs and codes, if two conditions are met:

• The owner has taken reasonable measures to keep the information secret.
• The information derives independent economic value, actual or potential, from not being generally known to, and not readily ascertainable through proper means by, others who could benefit from it.

There is no application, examination or registration. Protection exists as long as the information remains secret and the owner continues to take reasonable measures to protect it. The Defend Trade Secrets Act of 2016 provides a federal civil action for misappropriation under 18 U.S.C. 1836, and state laws provide additional remedies. The USPTO also maintains a trade secret policy page with background on the subject.

Key differences between trade secrets and patents

Disclosure

A patent requires full public disclosure. Most U.S. applications are published about 18 months after the earliest filing date, as described in MPEP 1120, and every issued patent is public. An applicant who will not file abroad may request nonpublication under MPEP 1122, but the details still become public if the patent issues. A trade secret, by definition, is never disclosed.

Duration

A patent's term is finite. A trade secret can, in principle, last indefinitely, but it can also end at any moment if the information is published, leaked or independently discovered.

Reverse engineering and independent discovery

This is often the deciding factor. A patent can be enforced against anyone who practices the claimed invention, even someone who developed it independently. A trade secret offers no such protection. Federal law expressly states that reverse engineering and independent derivation are not improper means. If a competitor can buy your product and work out how it is made, trade secret protection for that feature may provide little value.

Cost and formality

Patents involve government fees, professional fees for drafting and prosecution and maintenance fees after grant. Our articles How Much Does a Patent Cost? and Patent Maintenance Fees explain those costs in detail. Trade secrets have no filing fees, but they are not free: confidentiality agreements, access controls, employee training and security measures require ongoing investment and discipline.

Enforcement and value

A patent is a public, defined property right with written claims. That makes it easier to license, sell or use to support investment, as discussed in How to License Your Patent and How to Sell or Monetize a Patent. A trade secret is harder to value and transfer because its contents cannot be shown openly, and a misappropriation claim requires proving both that the information qualified as a trade secret and that it was taken or used improperly.

When a patent is usually the better choice

• The invention can be understood by examining or testing a product that will be sold publicly.
• Competitors are likely to develop the same solution independently.
• The invention is central to licensing, sales or investor discussions.
• Employee turnover, outside manufacturers or many business partners make long-term secrecy difficult.
• The technology is likely to remain valuable for a period that fits within the patent term.

When a trade secret may be the better choice

• The innovation is a process, formula or method used internally and not visible in the finished product.
• The information could remain valuable longer than a patent term.
• The subject matter may face patent-eligibility questions under 35 U.S.C. 101, as some business methods and software techniques do.
• The business can realistically limit access and enforce confidentiality.
• The innovation changes so frequently that patenting each version would not be practical.

Using both forms of protection

Patents and trade secrets are not mutually exclusive. A company might patent the features of a product that competitors could reverse engineer while keeping manufacturing parameters, process know-how, source code or customer data as trade secrets. The two must be coordinated, however. Information disclosed in a published patent application or an issued patent can no longer be a trade secret, so the decision about what to include in an application should be made deliberately and early. A patent search can also inform the choice by showing how crowded the field already is.

The prior commercial use defense

Companies that choose trade secret protection sometimes worry that a later inventor could patent the same process and sue them. U.S. law offers a limited defense in 35 U.S.C. 273. In general, a person who in good faith commercially used the subject matter in the United States at least one year before the earlier of the patent's effective filing date or a qualifying public disclosure may assert a defense to infringement. The defense has conditions and limits, so it should not be treated as a substitute for careful planning, and good records of the date and nature of the use are essential.

Keeping a trade secret protected

If you choose trade secret protection, your actions determine whether the protection holds up. Common reasonable measures include:

• Written confidentiality and invention assignment agreements with employees, contractors and partners.
• Nondisclosure agreements before sharing information with potential manufacturers, licensees or investors.
• Limiting access to those who need the information, with physical and electronic security controls.
• Marking confidential documents and training staff on their obligations.
• Exit procedures that remind departing employees of their continuing duties and recover company materials.

Decide before you disclose

Timing matters for both options. Public disclosure through a sale, a presentation, a website or an unprotected conversation can destroy trade secret status immediately and can also start a limited grace period for filing a U.S. patent application, with possible loss of rights in many other countries. If a patent may be the right path, a provisional application can secure a filing date before disclosure. For product appearance rather than function, a design patent may be another option.

How New England Intellectual Property can help

New England Intellectual Property works with inventors and companies across the United States to evaluate which innovations are strong candidates for patenting, prepare and prosecute patent applications and develop licensing and monetization strategies. Review our patent services, learn more about Richard A. Baker, Jr., CLP or request a free quote to discuss your invention.

Frequently asked questions

Related articles

• How to Patent an Idea: A Step-by-Step Guide for Inventors
• How Much Does a Patent Cost in 2026? A Realistic Budget Guide
• Provisional vs. Nonprovisional Patent Applications: Which Should You File?

Learn more about Richard A. Baker, Jr., CLP and our patent services.

This article provides general information, not legal advice. USPTO rules and fees change; consult the linked USPTO resources and a qualified professional for your situation.