Companies don't give the nitty-gritty of their legal actions as most shareholders don't understand what the content mean.
I note Antares is doing exactly what they say they would be doing (Mar 13, 2014 conf call on 2013 results):
"Before moving on, I would like to make a brief statement about recent events regarding litigation that has recently been initiated by Antares, and which has subsequently been initiated against Antares.
As a policy, Antares doesn’t discuss any ongoing litigation or litigation strategies, and I do not intend to say too much on the topic now.
But just to be clear, we fully intend to protect the proprietary technology that we have invested in and worked so diligently to create over the five or six years that we are working together here. And we will vigorously defend any claims made by others about their alleged intellectual property to the extent that such claims speak to undermine Antares."
(update) I like what I read. Thanks Loko for sleuthing :-)