Trademark proof of use
Document trademark usage with timestamped blockchain evidence to protect your brand rights.
Continuous documentation required
Trademark protection requires ongoing proof of use. Without proper documentation, you risk losing your trademark rights through non-use claims or cancellation proceedings.
Bernstein helps you maintain a continuous, timestamped record of trademark usage—evidence that holds up in registration and enforcement proceedings.
How Bernstein helps
Timestamped evidence
Create immutable records showing when and how your trademark was used in commerce.
Organized documentation
Keep all usage evidence in one place—product photos, marketing materials, sales records.
Continuous records
Build an ongoing audit trail of usage that demonstrates continuous commercial activity.
Court-ready evidence
Blockchain certificates meet evidentiary standards for trademark proceedings.
Why trademark proof of use matters
Trademark rights depend on active commercial use. In most jurisdictions, a registered trademark can be challenged or cancelled if the owner cannot demonstrate genuine use over a continuous period—typically three to five years.
Proof of use is required at multiple stages of a trademark's lifecycle: during initial registration in use-based systems like the United States, for renewal filings, in opposition and cancellation proceedings, and when defending against non-use revocation claims in the EU and other jurisdictions.
The burden of proof falls on the trademark owner. Without organized, timestamped evidence of commercial use, even a validly registered mark can be lost.
How it works
Collect evidence
Gather photos, documents, and materials showing trademark use.
Certify regularly
Upload and certify usage evidence on an ongoing basis.
Build your record
Maintain a continuous, timestamped trail of commercial use.
Use when needed
Access certificates for registrations, renewals, or disputes.
How Bernstein strengthens trademark protection
Bernstein creates blockchain-anchored, timestamped certificates for every piece of evidence you upload. This means each product photo, advertisement, sales record, or marketing material receives an immutable proof of existence tied to a specific date.
Unlike traditional methods—such as notarized affidavits or self-maintained folders—Bernstein's evidence is independently verifiable. Any third party, including trademark offices and courts, can confirm the authenticity and date of your evidence without relying on your own records.
By certifying usage evidence on an ongoing basis, you build a continuous audit trail that directly addresses the requirements of trademark offices worldwide. Whether you need to file a Declaration of Use with the USPTO, respond to a non-use revocation action in the EUIPO, or renew your mark in any jurisdiction, your Bernstein certificates provide the documentary backbone.