A prima facie case of obviousness requires which of the following?

A prima facie case of obviousness requires that all pieces of the claimed invention exist in the prior art, which is why the correct answer focuses on this aspect. The concept of obviousness, as outlined in 35 U.S.C. § 103, is determined by evaluating whether the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious at the time the invention was made to a person of ordinary skill in the art.

In establishing a prima facie case, it is essential to identify specific elements of the claimed invention and demonstrate that these elements are disclosed or suggested by prior art references. This means that for an invention to be deemed obvious, its components must not only be present in prior art but also be combinable in an obvious fashion to arrive at the claimed invention.

Other options do not accurately capture the requirements for establishing a prima facie case of obviousness. For example, new teachings in the prior art may contribute to a determination of non-obviousness rather than satisfying the prima facie case requirement. An inventor's personal statement of intent does not effectively establish obviousness, as it is not based on the disclosures of prior art. Similarly, a previously issued patent does not by