what is a proprietary brand
Split and merge into it. Answered by The Community. Making the world better, one answer at a time. Proprietary Brands is defined as a given brand name that is developed and marketed as an exclusive brand to a retailer that can be targeted to a specific consumer segment.plit and merge into it. Answered by The Community. Making the world better, one answer at a time. Proprietary Brands is defined as a given brand name that is developed and marketed as an exclusive brand to a retailer that can be targeted to a specific consumer segment.