Question: what is the difference between a utility patent and a design patent?
Answer: In general terms, a "utility patent" protects the way an article is used and works (35 U.S.C. 101), while a "design patent" protects the way an article looks (35 U.S.C. 171). ... Both design and utility patents may be obtained on an article if invention resides both in its utility and ornamental appearance.