Can You Win a TTAB Opposition Without a Strong Witness?

A trademark opposition can become complicated when the person who knows the most about a company’s brand is unavailable, has left the business, or simply cannot remember important details. Perhaps the founder launched the brand years ago but no longer has access to the original records. Maybe the marketing director who handled the first product launch has moved on. Sometimes, the only available witness is a current employee who knows very little about how the trademark was originally used.

These situations raise an important question: Can documentary evidence carry a TTAB opposition when witness testimony is weak or unavailable?

The answer is yes, depending on the claims involved, the evidence available, and whether the documents are properly introduced into the record. The Trademark Trial and Appeal Board (TTAB) can rely on documentary evidence to decide trademark disputes. However, documents do not automatically establish the facts a party needs to prove.

Under the Trademark Trial and Appeal Board Manual of Procedure (TBMP), the method of introducing evidence matters almost as much as the evidence itself. A business may possess years of invoices, advertising materials, and customer records, but those documents will have limited value if they are not properly submitted or do not establish the relevant legal elements.

Why Witness Testimony Can Become a Weak Point in TTAB Litigation

Unlike ordinary business disputes, trademark opposition proceedings often require parties to reconstruct events that occurred several years earlier.

A party claiming priority may need to establish when its trademark first appeared in commerce, which goods or services were offered under the mark, and whether that use continued. Someone must also explain how the documents relate to the trademark rights being asserted.

Problems arise when witnesses cannot confidently answer these questions.

Consider a company opposing a later trademark application based on alleged use dating back to 2017. Its current president joined in 2022 and cannot personally verify the company’s earlier activities. Although the business has old invoices and archived advertisements, the president may lack the personal knowledge needed to explain how those records were created.

That does not necessarily mean the opposition will fail. It means the company must carefully evaluate what its documentary evidence can establish independently and which facts require additional testimony.

The Board does not require every relevant fact to be established through a single witness. What matters is whether the entire properly admitted record supports the legal claims.

What Does the TBMP Say About Documentary Evidence?

TBMP Chapter 700 addresses trial procedure and the introduction of evidence in TTAB proceedings.

Under 37 C.F.R. § 2.122, certain materials may be introduced through a notice of reliance, including qualifying printed publications, official records, and discovery materials permitted by the applicable rules.

Other documents may require testimony to establish their authenticity, context, or evidentiary foundation.

This distinction is especially important when a party relies heavily on internal business records.

For example, an invoice may show that a transaction occurred on a particular date, but the invoice alone may not establish that the trademark appeared on the goods or was used in a manner recognized under federal trademark law.

Similarly, an old website screenshot might demonstrate that a business advertised certain products. Whether that screenshot proves trademark use, consumer exposure, or another disputed fact depends on its contents, admissibility, and supporting evidence.

The central lesson is that possessing a document and proving a legal fact through that document are two different things.

Can Invoices, Advertising, and Business Records Establish Trademark Priority?

Trademark priority is frequently contested in TTAB opposition proceedings, particularly when one party relies on common law rights rather than an earlier federal registration.

Invoices, dated product photographs, purchase orders, packaging, advertising campaigns, and historical website materials can help establish a timeline of commercial activity.

However, not all documents carry equal evidentiary weight.

An invoice bearing a company name may support evidence of a sale without necessarily demonstrating trademark use on the relevant goods. An advertisement may show promotional activity but fail to establish when actual sales began. A product photograph may show the trademark clearly but provide no reliable information about when the photograph was taken.

For goods, trademark use generally requires more than internal preparation or promotional intent. The requirements of Section 45 of the Lanham Act must be considered, including the manner in which the mark is placed on goods or associated materials and the nature of the commercial activity.

Service marks involve a different inquiry because the mark must be used or displayed in the sale or advertising of services, with the services actually rendered in commerce or in qualifying circumstances.

A well-prepared documentary record connects these facts rather than assuming that a collection of dated materials automatically proves priority.

Why a Notice of Reliance Cannot Fix Every Weakness

A notice of reliance can be useful when a party lacks a witness capable of explaining every document. Nevertheless, it is not a substitute for all testimony.

TBMP § 704 identifies categories of evidence that may be submitted through this procedure. The filing must explain the general relevance of the materials and connect them to the issues in dispute.

Importantly, admitting a document does not necessarily establish the truth of every statement it contains. Hearsay rules and other evidentiary limitations may still affect how the Board considers the material.

For instance, a third-party website may establish that particular information appeared online, but it does not automatically prove that every statement on the website is accurate.

This distinction can determine whether documentary evidence meaningfully supports a party’s claim or simply adds pages to the trial record.

Can Another Employee or Business Records Custodian Testify?

When the original employee responsible for a trademark’s early use is unavailable, another qualified witness may help establish the necessary foundation.

A records custodian or knowledgeable employee may be able to explain how business records were maintained, whether they were created during ordinary operations, and what the records document.

That witness does not necessarily need to have personally participated in every historical transaction. However, the witness must have an adequate basis for the testimony offered, and the applicable evidentiary requirements must be satisfied.

Under TBMP § 703, testimony may be introduced through declarations, affidavits, or depositions, subject to the opposing party’s right to cross-examination.

The objective is not to find someone willing to repeat the company’s preferred version of events. It is to identify someone who can reliably explain the records and their significance.

Building a Stronger TTAB Case Through Documentary Evidence

A practical approach begins by identifying the specific facts that must be established rather than collecting every available document.

For a priority dispute, this may involve tracing the earliest qualifying trademark use and establishing continuity. For a likelihood of confusion claim, the relevant evidence may include registration records, marketplace materials, advertising, and information concerning the parties’ goods or services.

At Cohn Legal, PLLC, our discussion of key evidence considerations in TTAB cases emphasizes the importance of authenticity, admissibility, and evidentiary weight.

These principles are especially important when witness testimony is limited.

A carefully organized record can help the Board understand the history of a trademark without relying entirely on someone’s memory. But where documents leave important questions unanswered, additional testimony or discovery may still be necessary.

Conclusion: A Strong TTAB Case Needs Reliable Proof, Not Just a Confident Witness

A trademark opposition does not automatically fail because a party lacks a persuasive witness. Documentary evidence can establish important facts and, in appropriate circumstances, provide sufficient support for a claim.

The difficulty lies in knowing what each document actually proves, how it must be introduced, and whether the complete record satisfies the applicable legal requirements.

For businesses facing a trademark opposition, the better question is not simply whether they have enough paperwork. It is whether their evidence establishes the facts the TTAB must decide.

Cohn Legal, PLLC assists entrepreneurs, startups, and established businesses with trademark protection and disputes before the Trademark Trial and Appeal Board. If your opposition involves missing witnesses, disputed priority, or complicated business records, our team can help evaluate the available evidence and procedural options.


Abe Cohn

Abe Cohn

Abe is managing partner of Cohn Legal, PLLC, Head of the firm’s Intellectual Property and Transactional Group, and works in the New York office in Midtown Manhattan. Abe is committed to his client's success.