How many Premier League teams have beaten Arsenal at the Emirates?

I am trying to find out how many Premiership teams have won games against the Gunners on their home turf since they moved to the Emirates.
Please name them.

2
(i)west ham 2 yrs ago when Bobby Zamora scored and that was the season when they beat an utd at old trafford too
(ii)-by Hull city a few weeks ago when daniel cousin and geovanni scored 2 great goals