Don't waste your time MOST IF NOT ALL of NTEK's are not registered, this has BEEN GONE OVER 100 times & does NOT mean their technologies aren't protected as they are in COMMERCIAL USE!!!
Bottom line is MONEY...why spend it there...no need when the revenues currently generated would be put to better use elsewhere,....simple, ain't it?
Moreover, in 2014 when the company is growing with more resources they'll likely take that course of action.
Welcome to last year's DD on the matter & directly commented on by corporate via their IR dept.
No mystery,...emerging company, preserving resources & deploying capital WISELY!!!!