After reading the OP on the following 2 threads: What are the best practices to prevent losing a brand name domain you want to sell or keep for a time before selling, while the market develops - eg. VR domains. I'm meaning without having to do things like file a trademark once you get it, or start an actual business using it. If there's a thread that already answered this well enough, could someone post a link.
Startup Sues A Domain Name Owner To Grab A 16-Year-Old URL
https://www.namepros.com/threads/startup-sues-a-domain-name-owner-to-grab-a-16-year-old-url.867613/
Microsoft Files HoloNotes and HoloShot Trademarks
https://www.namepros.com/threads/microsoft-files-holonotes-and-holoshot-trademarks.865606/
Startup Sues A Domain Name Owner To Grab A 16-Year-Old URL
https://www.namepros.com/threads/startup-sues-a-domain-name-owner-to-grab-a-16-year-old-url.867613/
Microsoft Files HoloNotes and HoloShot Trademarks
https://www.namepros.com/threads/microsoft-files-holonotes-and-holoshot-trademarks.865606/