Can I legally register my own surname as a trademark?
Supposing my name is Jeck Galifianakis, can I sue by law all the business entities (or maybe individuals too) that hold name Galifianakis in its name or merchandise but don't posses trademark for this name?
Will I have right to sue them if their name is Galifianakis LTD or Galifianakis GMBH or maybe Galifianakis Family LLC and I hold only trademark for Galifianakis word?
UPDATE: I was suggested that I can register trademark only for certain business activity code. OK, I conduct consulting services in EEA area, is it enough to register trademark in US or worldwide? What about geographical coverage for my trademark? How to make it worldwide?
Answers for all jurisdictions you are competent with are welcome (US, UK, EU, etc).
P.S. I saw this question but I want quite an opposite thing. I want to prevent businesses from using my name first served, until they don't realized they have no trademark for it ;)