Yes, unsure what they mean. For context it was developed in part by a guy from AFRL (Air Force Research Laboratory[0]); maybe it's a commercialization of some o

Yes, unsure what they mean. For context it was developed in part by a guy from AFRL (Air Force Research Laboratory[0]); maybe it's a commercialization of some of the miniaturized railgun/coilgun tech from the secret programs that were 'abandoned'? I'm thinking that's maybe what they mean by free of infringements; as in patent infringements, but I don't know. Your guess seems plausible too. [0]: https://www.afrl.af.mil/ https://www.afrl.af.mil/