Not true.. You are the one using the CCR form data as your basis for determining business structure. Every declaration of Global Detector says it is a sole proprietorship. CCR, USPTO by Jim Dahl about trademarks, local business listings, .. Have you found one registration or declaration that says otherwise? NO. Some unknown, un-named rep says subsidiary. I don't think so. So, have you given up on a subsidiary also being a sole proprietorship and agree IT CAN NOT?