Celanese International Corporation v. Daicel Corporation > Summary

Court Case Number IPR2017-00166

Filing Date Oct 31, 2016

Institution Decision Date May 8, 2017

Decision Date May 4, 2018

Court Patent Trial and Appeal Board

Status FWD Entered

Appeal2018-2131

Administrative JudgesSheridan K. Snedden, Tina E. Hulse, Zhenyu Yang

Judge Writing the Final DecisionSheridan K. Snedden

Claims Challenged in the Petition: 1, 2, 3, 5, 6, 9, 10, 11, 12, 13, 15

Claims Instituted: 1, 2, 3, 5, 6, 9, 10, 11, 12, 13, 15

Claims Invalidated: 11

Celanese Corporation

Daicel Corporation