What is a declaratory judgment suit? I am glad you asked that question as I found a very good description of declaratory judgment suits in Dilution by Blurring's Declaratory Judgment Actions. Here is the question's answer from the article:
I never get to use declaratory judgments very often but they do have their limits - as noted in the article.What is a “declaratory judgment”? A declaratory judgment is a judgment from a court that declares the rights of the parties in a dispute.
When would someone file an action for a declaratory judgment? Typically, a person files a declaratory judgment action when another person threatens them with litigation. In the trademark context, if Apple, for example, threatened to sue BlueAir for trademark infringement and BlueAir does not think that they are infringing Apple’s mark, then BlueAir can file a “dec action” in federal court to have the court determine who’s right as they did in this case.
From what I have seen, I like Dilution by Blurring. The blog takes on trademark law in a way that business owners as well as lawyers can understand.