Patterson snatches points for Derry
Substitute Declan O’Brien looked to have rescued a point for the Boynesiders with two goals in a minute, but Patterson had other ideas and produced a classy strike to snatch it for the Candystripes.
The best chance of the opening quarter fell to the visitors on 22 minutes when Patterson beat the offside trap to latch onto a Barry McNamee pass before driving a shot narrowly wide.