Quinton Patton signed with the Jets on Thursday, the team announced.
The 49ers selected the wide receiver in the fourth round (128th overall) of the 2013 draft.
He caught just three passes in each of his first two seasons in San Francisco.
In 2015, he registered 30 catches for 394 yards and one touchdown.
Last season, he recorded 408 receiving yards on 37 receptions.
In the 49ers Week 14 loss to the Jets, Patton caught four passes for 31 yards.
Patton visited New York last weekend.