No, as I don't have enough understanding of USA legalities to comprehend it all. According to http://www.pcmag.com/article2/0,2817,2399134,00.asp: "proprietary interest" in this case could be a licence, contract-agreement, trademark, copyright or other IP. Cheers, Nick
It's not very technical and I think it's worth reading if one can spare the time ... just to get the other side's view.