 Patterson attended Southwestern Oklahoma State University and was drafted by the Dodgers in the 29th round of the 2010 MLB Draft.He began his career with the Ogden Raptors in 2010, where he was 6-1 with a 
3.33 ERA in 14 starts.He split 2011 between the Great Lakes Loons and the Rancho Cucamonga Quakes and was 12-5 with a 3.69 ERA in 28 starts between the two levels.