I think by that point Ash had also used Meowth, Weezing, and Arbok (not Jessie and James' pokemon mind you). And if we're being really damn picky, Ponyta/Rapidash.
--
http://chzheroes.files.wordpress.com/2011/10/superheroes-batman-superman-well-at-least-flash-wont-get-caught.jpg