The word "proprietary" refers to something that is privately owned or exclusive to a particular person, company, or organization. It suggests that something is unique or protected, and not available to everyone. Full definition
CO2 Solutions is a leading developer of proprietary technologies for carbon dioxide (CO2) capture and management. (co2solutions.com)
So, what's the real reason that supplement companies use proprietary blends in the vast majority of cases? (seannal.com)
In 2015, he took on greater responsibility as the VP of training and product development, translating the needs of brokers and agents into the development of proprietary technology tools and training. (remonline.com)