Individual words cannot be protected by copyright, and Bethesda has not registered it as a trademark. Keep in mind that Bethesda has registered many words, phrases, and logos related to Fallout as trademarks, so your intended use may be infringing in other ways.
Bethesda Softworks
I assume you mean Bethesda Softworks headquarters and what I would do is Google 'Bethesda Softworks headquarters address'.
Bethesda softworks
Bethesda Softworks is a publishing house, meaning that they do not develop games. Bethesda Softworks was originaly founded to publish games of its primary developer - Bethesda Game Studios. Bethesda Game Studios makes The Elder Scroll franchise, and Fallout 3. Future Fallout games will also be made by Bethesda.
Skyrim was developed by the same team that created Fallout 3 and Oblivion before that. The Fallout series was first developed by Interplay - they brought out Fallout 1, 2 and Tactics. Fallout 3 was developed by Bethesda, however, Fallout: New Vegas was developed by Obsidian Entertainment, and published by Bethesda.
Bethesda Softworks. They also have made The Elder Scrolls series and are licesend to make as many fallout games as they want because they bought the series.
Dead Money is the first add-on for Fallout: New Vegas, developed by Obsidian Entertainment and published by Bethesda Softworks, to be released on December 21, 2010 for the Xbox 360 platform.
It is bad for kids and almost every other demographic apart from people that like bad games. Source: Common sense and Leaked memos from Bethesda Softworks
Bethesda
Bethesda.
Bethesda.
Yes, they bought the rights to the Fallout Franchise from Interplay, Obsidian entertainment is developing Fallout : New Vegas, they don't own the rights, and the game is being published by Bethesda.