What the owner has to prove
The core of most claims is that you own a valid mark and that the other side's use is likely to confuse customers about who makes or stands behind the product. Federal courts in New York weigh confusion under a multi-factor test developed in the Second Circuit, and no single factor controls. A federal registration helps with the first part, because it serves as evidence of validity and ownership. Unregistered marks can also be enforced, but the owner has to prove their strength and reach more directly. State law claims, including unfair competition, are often brought alongside the federal ones.
Evidence that carries weight
Instances of actual confusion, such as misdirected orders, calls, or reviews, are among the most persuasive evidence, though they are not required. Consumer surveys designed by retained researchers are common, and their methods get close scrutiny from the other side and the court. Evidence of the defendant's intent, including whether it knew of your mark when it chose its own, can matter. Collect and date every instance of confusion, your sales and advertising history, and anything showing when the other side learned about you. The strength of your mark in the market, shown through sales, publicity, and recognition, often carries as much weight as the similarity of the names.
Relief and pace
Many owners seek a preliminary injunction to stop the use early, and waiting too long to ask for one can undercut the claim of urgency. Final relief can include a permanent injunction, the defendant's profits, damages, and in exceptional cases attorney's fees. Expect the defense to attack your registration, often through a counterclaim to cancel it. Discovery in these cases is costly, so the budget is weighed against what an injunction or an award would actually be worth to the business. Before a complaint is drafted, we assess the strength of the mark, the evidence of confusion, and whether early injunctive relief is realistic.