Reiffin v. Microsoft Corp. (N.D. Cal.; Fed. Cir.)

A win on summary judgment of patent invalidity (on preemptive multithreading software) for our client Microsoft thereby also eliminating Plaintiff’s claimed patent priority date on a second asserted patent. The Patent Office granted a reexamination request regarding the validity of the second patent and invalidated all its claims. The Court of Appeals for the Federal Circuit affirmed the trial court’s invalidity ruling.