Originally Posted by Zarex
Ari Avad has stated that the character rights fell under the Spider-man contract with Sony, and were loaned to FOX for use in the Daredevil movie. Greg Weisman, however, has stated that he was unable to use the Kingpin in the Spectacular Spider-man cartoon he produced with Sony because the rights were held by FOX at the time.
Which is very weird, because Kingpin was
used by Sony back in 2003 for the CGI Spidey cartoon. So clearly there was some sharing or joint ownership going on back then, but the true nature of the arrangement seems to be unknown.