Simpson’s legal team also indicated they reserve the right to challenge the validity of the certificate of correction in the future, despite there being no current litigation on the matter. The panel further explored the issue of estoppel, with Eidson arguing that estoppel would apply if Simpson could have raised the corrected claims but did not.
The case centers around U.S. Patent No. 11,021,867, and the Federal Circuit panel included Judges Jimmie V. Reyna, Richard G. Taranto, and Raymond T. Chen.
The case is Simpson Strong-Tie Co. Inc. v. Columbia Insurance Co., case number 23-1944, in the U.S. Court of Appeals for the Federal Circuit.
