Patent Law

While Bilski requires that process claims recite machine or transformation limitations that "impose meaningful limits on the claim's scope," such limitations need not themselves be new or nonobvious. In other words, "meaningful limits" is not to be equated with "nonobvious limits," and the "meaningful limits" requirement may be satisfied ? insofar as Section 101 patent-eligibility is concerned ? by machine or transformation limitations which, standing alone, are old or obvious. Once Section 101 patent-eligibility is found to be present, novelty and nonobviousness of the claim as a whole may be satisfied by a novel and nonobvious algorithm in combination with the structural machine or transformation recitations.

As Chief Judge Michel points out in Bilski, in Abele the CCPA found a broad method claim reciting only data manipulation steps (calculating the difference between two values and displaying the value of the difference) to be patent-ineligible, but found a dependent claim adding only that the data is "X-ray attenuation data produced in a two dimensional field by a computed tomography scanner" to be patent-eligible, because the data represented physical and tangible objects.