Adaptix sues Sprint, Clearwire
I can only guess that Adaptix has changed their business plan from selling WiMAX equipment to suing other companies over Patent infrigement.Which means, Adaptix has probably filed law suits against other companies as well.
Sprint, Clearwire sued over WiMAX patents
This is yet another example of Patent abuse, as Adapatix was a WiMAX Forum member, and was totally aware of the IP issues WiMAX faces. In all the companies I have worked for, Patents were considered important, but we knew there is a small chance of actually suing other companies.