Plaintiff Kaneka Corporation (“Plaintiff”) filed a patent infringement against SKC Kolon PI, Inc. (“SKPI” or “Defendant”) and SKC, Inc. (“SKC America”). After the district court issued a scheduling order setting, among other things, a final day to amend pleadings, the Plaintiff moved for leave to amend its first amended complaint on the final day and the district court granted leave to amend, permitting the Plaintiff to file a second amended complaint. The parties subsequently filed cross motions for summary judgment.
While the summary judgment motions were pending, Plaintiff filed another motion for leave to amend the operative complaint. Although Plaintiff’s first amended complaint stated claims of direct infringement against Defendant SKPI, the second amended complaint omitted those claims. In its motion for leave, Plaintiff contended it inadvertently deleted those claims and moved for leave to amend to reinsert them.
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