I only know German law and I am not a lawyer - but a friend of mine is one and we often discuss those topics. 1) Important: Depends. If you have unfriendly com

I only know German law and I am not a lawyer - but a friend of mine is one and we often discuss those topics. 1) Important: Depends. If you have unfriendly competitors they may have a look at the trademark registration database, see that you have not registered a trademark and do so themselves. A domain is not enough. 2) Yes. Usually every company with +5 people working for the company has (easily) the resources to do that. 3) - 4) We have not registered any trademarks but we are in an early stage. I am pretty sure that we will register something shortly after a successful public launch.