09/24/2026
A distinctive product design isn’t automatically eligible for trademark protection.
The functionality doctrine draws an important line between how a product works and how customers identify its source.
• Utility patents may protect eligible inventions for a limited term.
• Trademarks identify the source of goods or services and can last indefinitely if properly maintained.
• Functional features—those essential to a product’s use or purpose, or affecting its cost or quality—cannot receive trademark or trade dress protection.
For example, a handle shape that improves grip may be functional. A nonfunctional, distinctive design that identifies your brand may qualify for trade dress protection.
Understanding this distinction can help you build a stronger intellectual property strategy.
Have questions about protecting your invention or product design?
Visit fishiplaw.com to learn more and connect with Fish IP Law.
Watch full video here👉🏿
https://youtu.be/cQ0T84Y71C0?is=8L_FNLY9dr2m2vht