Looks like Blac Chyna won't be apart of the Kardashian regime anytime soon.
Chyna filed a petition to trademark the name Angela Renee Kardashian, but was unsuccessful as the Kardashian sisters (Kourtney, Kim, and Khloe) her from trademarking their last name, even if she did marry their brother Rob.
The sisters argued that it would cause confusion in the marketplace. Can't blame them for stopping Chyna from profiting off their name.