8. Legal Monopoly
For a few years in the 30’s Walt held the exclusive contract for Technicolor, which was the only way in which animated films could be made in color. This ensured that Disney was the only company that could put out animated full-color films legally for those years in which he held the exclusivity. Of course, that didn’t last long, but a monopoly over a type of property or technology like that has rarely, if ever, happened since.