The question presented in this case is… whether the act of filing an application for a U.S. patent at the USPTO is sufficient to subject the [Canadian] filing attorney to personal jurisdiction in a malpractice claim that is based upon that filing and is brought in federal court. For the reasons discussed below, we conclude that it is.
Judge Lourie of the US Court of Appeals for the Federal Circuit in Touchcom Inc. et al v. Bereskin & Parr et al.,
