My point is that you can import stuff to Trek. Not that's more (in this case) than the reuse of a name and a description.
But would you want to? If you did, you'd pretty much lose it to CBS. I've taken concepts I created for my original fiction and incorporated them into my Trek work, but only ideas that had fallen by the wayside, that hadn't yet seen print or no longer fit into my plans for my original work.
I certainly wouldn't do it with something I was planning to use again.
Mind you, there's a difference between "created for" and "pre-existing" or public domain - all depends on all the individual contracts involved, and so on...