Microsoft Corp. v. Baker

litigants	Microsoft Corp. v. Baker
arguedate	March 21
argueyear	2017
decidedate	June 12
decideyear	2017
fullname	Microsoft Corporation v. Seth Baker, et al.
usvol	582
uspage	23
parallelcitations	137 S. Ct. 1702; 198 L. Ed. 2d 132
docket	15-457
opinionannouncement	https://supreme.justia.com/cases/federal/us/582/15-457/opinion3.html
prior	Baker v. Microsoft Corp., 851 F. Supp. 2d 1274 (W.D. Wash. 2012); 797 F.3d 607 (9th Cir. 2015); cert. granted, 136 S. Ct. 890 (2016).
holding	Federal courts of appeals lack jurisdiction to review a denial of class certification after the plaintiffs have voluntarily dismissed their claims with prejudice.
majority	Ginsburg
joinmajority	Kennedy, Breyer, Sotomayor, Kagan
concurrence	Thomas (in judgment)
joinconcurrence	Roberts, Alito
notparticipating	Gorsuch

Microsoft Corp. v. Baker, 582 U.S. 23 (2017), is a United States Supreme Court case holding that Federal courts of appeals lack jurisdiction to review a denial of class certification after plaintiffs have voluntarily dismissed their claims with prejudice.[1][2][3]

On October 5, 2009, the United States District Court for the Western District of Washington refused to certify a class action lawsuit regarding scratched discs caused by Xbox 360 technical problems, and plaintiffs then settled.[4] A new set of plaintiffs then filed a new class action bringing the same claims.[4] After the district court again refused to certify the class action claims, plaintiffs joined Microsoft's motion to dismiss the entire lawsuit with prejudice, which U.S. District Judge Ricardo S. Martinez granted on March 27, 2012.[5]

Microsoft Corp. v. Baker

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