United States Patent and Trademark Office helpful guide on design patent applications apply for both a design patent this Design Patent Guide Design Patent Guide patent application Application Filing Guide, Design Patents Design Patent Guide strict guidelines Design Application Guide US Design Patent Guide Design Patent Guide Application Filing Guide, Design Patents United States Patent and Trademark Office (USPTO) design design Design Patent Guide Design Patent Guide Design Patent Guide value beyond ornamentation Design patents United States Patent and Trademark Office (USPTO) US Patent & Trademark Office design patent Design Patent Guide Design patents strict guidelines Design Patent Guide design patent A Guide to Filing a Design Patent Application