The only two I can think of is Don Frye vs. Mark Hall and maybe Kalib Starnes vs. Nate Quarry.. I think Quarry tagged him a few times though.. not sure..
Brown vs. Maia. I mean, I'm sure there were some, it was a 3 round fight, but it couldn't have been too many.
I don't think Werdum landed a strike on Fedor, but Fedor did land... Sonnen/Maia was very grappling heavy so it's possible neither landed or threw many punches... Sakuraba/Newton looked like they just wanted to purely grapple... Hughes/Trigg 1 was a pure grappling match... Maia/Quarry and Leites/McFedries were quick subs and they were able to put them on the mat quick Probably not 0 strikes landed, but very few, if any.
Nope. http://www.tubechop.com/watch/8207517 http://www.tubechop.com/watch/8207519 http://www.tubechop.com/watch/8207528