(United States Federal Circuit) - Reversing the district court's grant of summary judgment based on a finding of equitable estoppel and remanding a case in which asserted claims had been substantively amended or added following ex parte reexamination and the plaintiff only sought damages for infringement of the reexamined claims, so the court abused its discretion in finding equitable estoppel based on activity beginning twelve years prior to the issuance of the reexamination certificate.
Source: findlaw.com