<Li> if the invention was previously invented in the U.S. by another, who has not abandoned, suppressed, or concealed the invention, or </Li> <Li> if the invention was described in a patent application filed by another, where the application later issues as a US patent . </Li> <P> In U.S. patent law, a claim lacks novelty, and anticipation occurs when one prior art reference or event discloses all the features of a claim and enables one of ordinary skill in the art to make and use the invention . The term "features" in this context refers to the elements of art of the claim or its limitations as explained in the all elements rule . </P> <P> A prior art reference must not only disclose every feature of a claim, but must also disclose the features arranged or combined in the same way as the claim . </P>

When do you call an invention to be novel