Typical hourly rates, deposition costs, trial fees, and retainer ranges for trademark expert witnesses in 2026.
| Fee Type | Typical Range | Notes |
|---|---|---|
| Hourly Rate (Case Review) | $400 – $650/hr | Record review, research, report preparation, counsel calls |
| Deposition Rate | $450 – $750/hr | Often billed portal-to-portal; some experts use flat half-day rates |
| Trial Testimony Rate | $500 – $850/hr | Frequently billed as flat daily rate; standby time may apply |
| Initial Retainer | $6,000 – $18,000 | Billed against hours worked; unused portion typically refunded |
Trademark expert witnesses address likelihood of confusion, secondary meaning, dilution, and lost profits in trademark infringement litigation. Intellectual property attorneys, marketing professionals, and consumer survey experts all contribute in this specialized field.
Consumer survey evidence is often the centerpiece of trademark litigation — specifically, Teflon surveys (testing acquired distinctiveness), Eveready surveys (testing likelihood of confusion), and Squirt surveys (testing reverse confusion). Survey experts with backgrounds in market research, consumer psychology, or statistics command $450–$650/hr for survey design, administration, and testimony.
IP attorneys serving as expert witnesses — typically retired partners or law professors specializing in trademark law — provide opinions on industry customs, USPTO prosecution history, and damages methodologies. These experts charge $400–$600/hr, consistent with their billing experience.
Lost profits and reasonable royalty calculations in trademark cases require an economic or financial expert working alongside the trademark liability expert. Total expert costs in contested trademark litigation frequently exceed $100,000.
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