As I am planning the purchase of my second turbine in the future, perhaps a year or so from now. Currently I have a RAM 750+ that somehow missed the iconol CC upgrade and melted the CC.

Perhaps the question that I have not seen answered is did Wren or any other manufacturer patent their products? I ask this because my father and I developed the variable needle valve for RC boat use 30 some years ago. The design then became the one built by Don Pinkert, whom we used to be semi-sponsored by. The valve later became with a few changes the one BVM sold and later patented.

Without the issuance of a patent somewhere, who is really the owner of the design?