All summer, the 49ers have been looking for help at wide receiver.First, they hoped A.J. Jenkins would blossom. When he didn't, they traded him for Jonathan Baldwin. Over the course of training camp they've been pleased with Marlon Moore, and taken a long look at other free agents such as Austin Collie, Latrell Hawkins and Chuck Jacobs.But Sunday night, in his first appearance in an exhibition game after overcome an early training camp injury to a finger, fourth-round draft pick Quinton Patton provided a ray of sunshine.Patton caught four passes for 35 yards and a touchdown in the 49ers' 34-14 victory over the Minnesota Vikings, cementing himself as a viable option for quarterback Colin Kaepernick this season.On a first-quarter third-and-10 play, Kaepernick connected with Patton on a 19-yard gain. Later, Patton pulled in a 5-yard TD strike.After one of Patton's catches, Sports Illustrated's Doug Farrar tweeted: "There's my guy Quinton Patton. Loved him at the Senior Bowl. " Tweeted Matt Miller, an NFL analyst for Bleacher Report: "Quinton Patton was my No. 6 rated WR this year. He's capable of becoming a starter for the 49ers long term." The San Francisco Chronicle's Kevin Lynch...