Utility patents US utility
patents protect the functionality of a given item, i.e., how a product works. Providing the maintenance fees are paid, utility patents are generally valid for up to 20 years from the date of filing (with some exceptions). Design patents cover the ornamental appearance of an item. Design patents can be invalidated if the design is dictated solely by function (e.g. the outline of a key blade blank). Design patents are valid for 14 years from the date of issue if filed prior to May 13, 2015, or 15 years from the date of issue if filed on or after May 13, 2015. There are no maintenance fees. "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). The ornamental appearance for an article includes its shape/configuration or surface ornamentation applied to the article, or both. Both design and utility patents may be obtained on an article if its novelty resides both in its utility and ornamental appearance."MPEP - Distinction Between Design and Utility Patents
Copyright Copyright prevents nonfunctional items from being copied. To show copyright infringement, the plaintiff must show the infringing item was copied from the original. The copyrighted artistic expression must either have no substantial practical utility (e.g. a statue) or be separable from the useful substrate (e.g. picture on a coffee mug). Design patents, on the other hand, protect the ornamental aspects of an article of manufacture from being infringed. One does not have to show that the infringing item was copied from the original. Thus a design that was arrived at independently can still infringe a design patent. Many objects can be covered by both copyright and design patents. The
Statue of Liberty is one such example.
Trademark and trade dress Trademarks and
trade dress are used to protect consumers from confusion as to the source of specified goods. To get trademark protection, the trademark owner must show that the mark is non-functional, is distinctive, and is not likely to be confused with other trademarks for items in the same general class. The trademarks can last indefinitely as long as they are used in commerce. Design patents are only granted if the design is novel and not obvious over prior art designs, generally even those of different articles of manufacture than the patented object. An actual shield of a given shape, for example, might be cited as prior art against a design patent on a computer icon with a shield shape. However, recent case law has held that the shape of an art tool cannot be cited as anticipatory prior art against the substantially identical shape of a lip implant. The validity of design patents is not affected by whether or not the design is commercialized. Items can be covered by both trademarks and design patents. The contour bottle of
Coca-Cola, for example, was covered by a now expired design patent, , but is still however protected by at least a US registered trademark. ==See also==