By John McKeown ( December 24, 2021, 9:47 AM EST) -- The Federal Court of Appeal has confirmed that it is not appropriate to set aside decisions made by hearing officers of the Trademarks Opposition Board unless a clear error has been made (Industria de Diseno Textil, S.A. v. Zara Natural Stones Inc. [2021] F.C.J. No. 1990)....