If there are serious assets (such as a house) or children, experts strongly recommend this step, which details your legal rights and obligations should the two of you separate.

如果你们拥有重要的财产（比如房子）或者孩子，专家强烈建议你们这么做。 当你们分开时，你们能详细的指出你们合法的权利和义务。

youdao

The two Mercks became separate companies under the Treaty of Versailles, each owning rights to the Merck trademark in different geographic areas, as part of Germany's reparations after World War I.

WSJ: Merck's Facebook 'Misappropriated' by Merck