[iwwr]

Unfortunately, Belbruno's work may stay unused because he has a penchant for patenting it. The idea of low energy transfers aren't new and Belbruno didn't invent them, but you can apparently patent individual trajectory strategies. That also means any commercial venture would shy away from talking to him for fear they may be litigated against (which has happened).

Another thing to notice is these trajectories are no good for manned travel as they can take years or decades extra, they are even slower than the more traditional multi-planet slingshot maneuvers.