Kardashians vs. Blac Chyna? Find Out What's Really Going on Between Rob's Family &amp…

There’s some drama going on involving the Kardashians and Blac Chyna!

This past May, Rob Kardashian‘s fiancée filed an application to trademark the name Angela Renée Kardashian, which will become her name when she marries Rob.

But it appears that Kim Kadashian, Khloe Kardashian and Kourtney Kardashian‘s companies aren’t OK with this because just last week attorneys for their companies, Kimsaprincess Inc., Khloemoney Inc. and 2Die4Kourt filed papers to formally oppose Chyna’s trademark registration.

So are the Kardashians now feuding with Chyna?

A family source tells E! News, “Their trademark attorneys automatically oppose anyone trying to trademark ‘Kardashian.’ I doubt the girls were even aware.”

So what’s the status of the relationship between the Kardashians and Chyna?

Watch the E! News video above to find out and to get more scoop on this story!