Monopoly was patented-- in 1935. So that's long-expired. And many of the non-Hasbro -opoly games (that use that as part of their name) actually are licensed.

Monopoly was patented-- in 1935. So that's long-expired. And many of the non-Hasbro -opoly games (that use that as part of their name) actually are licensed. Hasbro's been known to go after unauthorized users of the name for trademark infringement.