This morning, the Federal Circuit released four nonprecedential opinions and an erratum. In the first opinion, the court dismissed an appeal from the Court of Appeals for Veterans Claims. In the second, the court affirmed a judgment of the Patent and Trial Appeal Board. In the third, the court reversed a judgment of no invalidity in a patent case appealed from the Eastern District of Texas. In the fourth, the Federal Circuit affirmed a judgment in a pro se case appealed from the Court of Federal Claims. Here are the introductions to the opinions and a link to the erratum.