by Dennis Crouch In the civil procedure focused Keranos v. Silicon Storage (Fed. Cir. 2015), the Federal Circuit has ruled that a trial court must consider good cause when determining whether to allow parties to amend their infringement contentions. The is a likely precursor to future disputes if Congress enacts patent reform measures that require traditional infringement contention elements be asserted in the original complaint. Here, Keranos sued several dozen defendants in E.D. Texas for infringing its transistor programming patents. See U.S. Patent Nos. 4,795,719, 4,868,629, and 5,042,009. In its original infringement contentions (filed prior to discovery as required by local rules), Keranos identified a number of allegedly infringing products and product families. After uncovering further information regarding infringing products, the patentee filed a motion to amend its infringement…
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