Magnum Research gives Walther money so that they can produce the MR9. This is an example of a licensed copy. They also buy some components of the pistol from Walther, and outsource magazines to the same company (Mecgar) who makes P99 mags for Walther.
In contrast, the S&W SW99 was a joint venture between S&W and Walther. S&W didn't have to pay Walther to make the pistol, but Walther did get money out of the deal, as S&W bought components for their pistol from Walther, as well.
Currently Own: Beretta PX4 9mm, Glock 23 (Gen 4), Glock 19 (Gen 4) x2