The publisher has acquired the search terms 'Iron Man', 'Spider-Man', 'Thor' and 'X-Men' on the social networking platform, Bleeding Cool reports.
A Twitter search for any of the above terms will yield an advert for DC's 'New 52' initiative as the top result. As the company has only purchased the phrases in the US, users in other territories will not see the same results.
DC purchased the rights to the word 'Marvel' as a Twitter search term several days ago. However, the 'New 52' advert no longer appears when users search for this term. It is unknown whether the issue was challenged from a legal perspective.
The report notes that DC's actions are not illegal, but may be "challenged by a trademark owner in a competitive field".
Marvel Comics senior vice president Tom Brevoort previously said that he relishes competition from DC, and believes that their success is good for the industry.