If you’ve come up with a new invention, it’s natural to want to share it — with potential investors, partners, or even on social media. But in the United States, publicly disclosing your idea before filing a patent application can seriously limit your rights and, in some cases, prevent you from getting a patent at all.
Understanding what counts as a “disclosure,” how the U.S. grace period works, and why early filing is critical can make all the difference in protecting your invention.
1. What Counts as a Public Disclosure
In U.S. patent law, a “public disclosure” is any action that makes your invention available to the public. This includes:
Publishing it online or in a brochure
Showing it at a trade show
Selling or offering to sell the product
Giving a public presentation or posting it on social media
Even discussing technical details without a confidentiality agreement
Once you make your invention publicly accessible, the one-year clock starts ticking.
2. The One-Year Grace Period
Under 35 U.S.C. § 102(b)(1), inventors in the United States have a one-year grace period from the date of their own public disclosure to file a patent application.
This means if you publicly reveal your invention on January 1, 2025, you have until January 1, 2026, to file a patent application. After that, your own disclosure becomes prior art that bars your patent.
However, there are important limits:
The grace period only protects your own disclosures, not those made by others.
If someone independently develops or files for the same invention before you do, they could gain priority.
3. Offers for Sale or Public Use Also Count
You don’t have to post your invention online for it to be considered disclosed. Under 35 U.S.C. § 102(a)(1), even offering to sell your invention, or using it publicly without confidentiality restrictions, may qualify as a public disclosure.
For example, if you start selling your product before filing, you have only one year from your first sale to file a patent application — after that, it becomes unpatentable.
4. NDAs Offer Limited Protection
A non-disclosure agreement (NDA) can help, but it’s not foolproof. If the party you speak with breaches confidentiality or shares your idea, that may still count as a public disclosure.
NDAs are useful when talking with:
Manufacturers or suppliers
Potential investors
Contractors or designers
However, the only guaranteed protection is to file a patent application before you disclose anything — even a simple provisional patent application can secure your filing date and allow you to safely discuss your invention as “patent pending.” To learn more about provisional patent applications, click here.
5. Best Practices for U.S. Inventors
To protect your patent rights in the United States:
File early. File a provisional patent application before presenting or discussing your invention.
Use NDAs when you must share information prior to filing.
Document everything — keep records of disclosures, communications, and dates.
Consult a registered U.S. patent practitioner to ensure your filing covers all essential details.
6. Key Takeaway
The United States gives inventors a limited safety net — but it’s not absolute. Once your idea is out in the open, the countdown begins.
Ready to proceed? Contact us at admin@legacypatents.com or click the link below, and we will help guide you!
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