GAMMINO v. SPRINT COMMUNICATIONS COMPANY (Fed. Cir. 2014) (NP) – Prosecution statements characterizing all elements of a set preclude enforcement against a subset

Repeated and unqualified statements in the prosecution history that the claimed invention treats all elements of a set in a certain manner may preclude enforcement against a system that selectively operates on a subset of those elements. For example, as here, stating...

ALBECKER v. CONTOUR PRODUCTS, INC. (FL) (Fed. Cir. 2014) (NP) – Use of disjunctive “or” in describing set of features may imply that the features are alternatives

Use of a disjunctive “or” in describing a set of features may be used to infer that the features are alternatives to one another. Although this may not be sufficient to establish that such alternatives are mutually exclusive in a given embodiment, it may imply that...

SCRIPTPRO, LLC v. INNOVATION ASSOCIATES (Fed. Cir. 2014) (P) – Qualifiers such as “generally” or “broadly” may avoid inference that a list of features is essential

Although the inclusion of truly essential features may be required for a claim to satisfy the written description requirement, the court acknowledged that “[i]t is common, and often permissible, for particular claims to pick out a subset of the full range of described...