This Practice Note discusses motions to stay a district court patent suit pending a post-grant patentability challenge at the Patent Trial and Appeal Board (PTAB) under the Leahy-Smith America Invents Act (AIA). It discusses the applicable law and precedent concerning motions to stay pending covered business method review (CBM), inter partes review (IPR), and post-grant review (PGR), including factors courts consider when deciding a motion to stay and practical considerations.