Ergo Licensing, LLC v. CareFusion 303, Inc., No. 11-1229 (Fed. Cir. 2012)
Annotate this CaseThe patent describes an infusion system used to meter and deliver fluids from multiple sources into a patient's body. Different fluids may be discharged at different rates using a central control device. Ergo sued CareFusion for infringement of several of the patent's claims; the parties stipulated that several terms were means-plus-function terms, including the terms "programmable control means" and "control means." The parties agreed that the analysis for both terms is the same and that the function for the terms is "controlling the adjusting means." The district court held that the "control means" terms are indefinite for failure to disclose corresponding structure. The Federal Circuit affirmed.
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