The 28-year-old reality star, who recently gave birth to her and fiancé Rob Kardashian's first child, filed an application to trademark what will become her married name after she and Rob tie the knot: Angela Renee Kardashian.
The application, filed on behalf of Chyna’s company Lashed LLC, is now being contested by Kim, Khloe and Kourtney Kardashian's companies -- Kimsaprincess Inc., Khlomoney Inc. and 2Die4Kourt, respectively.
If Chyna's request is granted by the United States Patent and Trademark Office, she would have the sole right to use her name for advertising, business dealings and across all social media platforms.
However, the Kardashian sisters' companies filed a Notice of Opposition last Thursday which argues that the Kardashians’ companies would "suffer damage, including irreparable injury, to their reputation and goodwill" if Chyna were granted a trademark on her future married name, according to documents obtained by ET.
According to the notice, the Kardashians' name and brand has "acquired distinctiveness and goodwill in the United States and throughout the world," and that each of the sisters' companies have "spent, and continue to invest, a substantial amount of time, resources and money in protecting, advertising and promoting" their brand.
Chyna's company has yet to respond to the notice of opposition. It's unclear how involved Kim, Kourtney and Khloe are in the decision to opposition Chyna's trademark, or if the decision was made on their behalf by their companies' lawyers.