Blizzard's President, Mike Morhaime, has voiced his disapproval at this year's BlizzCon of Valve's attempts to trademark the term "Dota".
Valve is planning on trademarking Dota due to the fact that they are behind Dota 2, the official sequel to the popular Warcraft 3 mod. But Blizzard are also making a version of the popular mod for StarCraft 2.
When Morhaime was asked if Blizzard were in talks with Valve about the trademark, he replied with "We're very friendly with Valve. So yeah, we do talk to Valve."
Morhaime later went on to talk about their stance on how the trademark really should belong to the community, "I can share that our opinion about the situation is that the DotA name really should belong to the community.
I think that it's been part of the Warcraft 3 community for a very long time, and we would like to see the community continue being able to use that name, and having an exclusive mark owned by a competitor doesn't feel right to us."