This is a list of all available blue and purple patterns from Wrath of the Lich King:
This is a list of all blue and purple recipes currently offered by WotLK. As time progresses I will be weeding out the common "trainable" recipes as it will be assumed that all of our Leatherworkers have all trainable recipes.
This is a list of all non-trainable patterns from The Burning Crusade:
Please post here with any new patterns you come across. I will make updates as I see them. Also, please add which character has the patterns you'd like to add. Most people have more than one character and I have no idea which of your alts or main has which tradeskill. If there are any discrepancies (something that is on here that shouldn't be, vice versa, or anything that is incorrect) please let me know here or with a PM.