On May 22, 2017, in TC Heartland LLC v. Kraft Foods Group Brands, LLC, 137 S.Ct. 1514 (2017), the Supreme Court held that patent venue is controlled exclusively by 28 U.S.C. § 1400(b), which restricts venue in patent cases to (1) where the Defendant resides, or (2) where the Defendant commits an act of infringement and has a regular and established place of business. The decision was immediately hailed by commentators as a significant break with past precedent… Despite the common perception of practitioners that the TC Heartland decision changed the law of venue in patent cases, the majority of district courts to address this issue have come to the opposite conclusion, finding that the decision merely reaffirmed existing law and could not excuse the failure to raise the defense earlier. The reasoning of these decisions is questionable, as is the refusal of these courts to recognize how dramatically TC Heartland changed the landscape for patent litigation.