Patton was designated for assignment Wednesday.
Patton was selected from Triple-A Las Vegas on Monday.
Oakland outrighted Patton to Triple-A Las Vegas on Monday after he cleared waivers.
Patton was designated for assignment Saturday, Martin Gallegos of MLB.com reports.
The Athletics selected Patton's contract from Triple-A Las Vegas on Thursday.
Patton agreed to a minor-league contract with the Athletics on Wednesday, Jon Heyman of the New York Post reports.
Patton was released by the Rangers on Tuesday, Kennedi Landry of MLB.com reports.
Patton cleared waivers and was outrighted to Triple-A Round Rock on Saturday.
The Rangers designated Patton for assignment Thursday.
Patton (oblique) was activated from the 10-day injured list Wednesday and subsequently optioned to Triple-A Round Rock.