Federal District Court Finds Claims Directed to Dog Chew Toy Patent EligibleFew subjects have drawn as much interest among patent stakeholders and practitioners as understanding the framework used to determine a patent claim’s eligibility. Courts continue to address different factual situations in applying the two-step test for patent eligibility under 35 USC § 101 that the Supreme Court set out in Alice Corp. Pty. Ltd. V.

The Risk of Using “Consisting Essentially of” in Patent ClaimsThe legal meaning of the transition language “consisting essentially of” is well-established in Federal Circuit case law and is generally construed to mean that the composition or formulation (a) necessarily includes the listed ingredients and (b) is open to unlisted ingredients that do not materially affect the basic and novel properties of the composition.  Similarly,

Detecting Disease Is Not a “Tangible and Useful Result” Eligible for PatentingThe federal appeals court with jurisdiction over questions of patent law has consistently held that methods of diagnosing a disease or other biological condition violate the Supreme Court’s ban on patenting “natural phenomena.” A recent decision reaffirmed this position (in the veterinary sphere), and for the first time in many years clearly articulated the test