Chyna is engaged to Rob Kardashian and the couple just welcomed their first child, Dream Renee Kardashian.
The Kardashian sisters, Kim, Khloe and Kourtney are reportedly trying to ban future sister-in-law Blac Chyna from trademarking their surname.
According to TMZ, companies owned by Kim, Khloe, and Kourtney are opposing Chyna's request to trademark ‘Angela Renee Kardashian’, a name which she wants to use while working in entertainment and also on social media.
Are the Kardashians trying to stop Blac Chyna from using their surname?
TMZ claim they’ve seen the legal documents, which state that if Chyna gets the trademark the Kardashians will "suffer damage including irreparable injury to their reputation and goodwill.”
The docs also say Chyna is "deliberately seeking to profit from the goodwill and popularity" of the Kardashian name.
More: Blac Chyna "Taunting" Rob Kardashian Over Her Weight Loss
New mom Chyna is engaged to Rob Kardashian and the couple are said to be planning their wedding for next year. But TMZ also report they are in the process of trying to secure a TV deal to air the ceremony as a special.
Sources close to the couple say that for the right price, they’ll happily let the nuptials be filmed.
More: Why Rob Kardashian And Blac Chyna Chose To Name Their Daughter Dream
On Thursday Chyna and Rob’s daughter Dream Renee Kardashian will turn four weeks old, and the baby already has a strong social media presence. Along with having her own Instagram, Dream has also been featuring heavily on her parent’s accounts.
On Tuesday Rob shared a sweet snap of the little one sleeping, captioning it: “Sleep baby … best thing that has ever happened to me in my life.’