Hi, We are a LTD company and have been trading for 4 years. We sell our own branded products online, on Amazon and Ebay. We've not registered an official trademark for our brand name. We've been approached by a small company in Germany with a similar brand name who sell similar products and are asking us to cease and desist immediately using our name on our products. As they hold a trademark to a similar brand name in the same sector. (They sent a link, they do hold a trademark for the mark "Doctorcase" since 2014) Our brand name : Case Doctor Their brand name : Doctorcase Does their trademark apply only to Germany? Is this a genuine claim although our names are not the exact same? Is there anyone who can offer advice / help us with this?