Well they should I recently downloaded it and they hadn't for some reason...possibly the file wasn't unpacked correctly but I commented onm this after I had downloaded it and hadn'T found a *.pat file ^^
Ah, maybe it's like...the only pack of theirs without a .pat file. I recently got all of their packs, but I think only one of them didn't have one :/ Oh well! It's pretty easy to make pattern files, if you want them from these specific ones. If you just load in the picture, and go to edit "define as pattern", then you're good to go! 
Oh I know how it works - I just thought I let the creator know ^^