(March 22, 2018, 12:54 PM EDT) -- ALEXANDRIA, Va. — A patent relating to a method of treating wrinkles with compositions containing adenosine or an adenosine analog would have been obvious to a person of skill in the art (POSITA), L’Oreal USA Inc. asserts in a March 20 petition for inter partes review (IPR) by the Patent Trial and Appeal Board (L’Oreal USA Inc. v. University of Massachusetts, et al., No. IPR2018-00779, PTAB)....