Keen Cutter is an old brand. However, despite what they have stamped on them, those knives look to be of Chinese manufacture to me. I'm just guessing, but it's probably another case of an old American Company name being bought and put on knives made overseas. It's the wood used for the handles that make me think this to be the case. All of this is just a guess on my part.
They should be decent work knives though.