(September 27, 2016, 1:09 PM EDT) -- ALEXANDRIA, Va. — In a Sept. 24 petition for post-grant review (PGR) filed with the Patent Trial and Appeal Board, a company specializing in shock absorbers for mountain bikes takes aim at a patent that discloses a solitary chainring of a front crankset of a bicycle drivetrain (FOX Factory Inc. v. SRAM LLC, No. PGR2016-00043, PTAB)....