Qatar recently unveiled its Boeing 787 at Farnborough. One of the articles regarding the business class seat said that it is "revolutionary and proprietary" to Qatar Airways. It seems that B/E Aerospace made the Business Class seats while Recaro made the economy class seats.
So, what makes a seat proprietary? I'm not so sure what makes this seat drastically different from EK, SQ or one of the other premier airlines.
While the seat does look appealing, I personally don't like it since you can't look out the window.