I can understand why Ionics would not like anyone using their logo. But i cant see the point in anyone else being bothered. after all who other than other window cleaners even know who the heck ionics are, what they do, or if their gear is any different?
Its the customers I worry about and all they worry about is if I can get the muck off their windows not whose equipment I use to do it.
And NO i dont use Ionics and if I did I certainly would not advertise it. (unless they paid me)