The Impact of Williamson v. Citrix on Software Patents

On June 16, 2015, the Federal Circuit decided Williamson v. Citrix, changing its position on means-plus-function claims. Because this case has potentially significant impacts on the validity and scope of software patent applications, we are providing this memo to give a brief summary of this case an...
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Means-plus-function Elements Lacking the Term “Means”

A claim element that is described in terms of its function may be subject to interpretation under 35 U.S.C. § 112(f).  §112(f) defines a specific claim form known as “means-plus-function.”  The scope of a means-plus-function claim is limited to the structures disclosed in the written descrip...
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