proprietary
adjective [ before noun ]
uk/prəˈpraɪətəri/ us/prəˈpraɪəteri/ MARKETING, COMMERCE
used to describe a product that is made and sold by a particular company whose name, or a name that it owns, is on the product:
The products were developed using two proprietary and patented technologies.
The company focused too heavily proprietary products as the source of competitive advantage.
a proprietary brand/name
a proprietary drug/medicine
proprietary software/systems
LAW
relating to ideas or information that belong to one particular company and can only be used by them:
proprietary content/data/information
The equation used to produce the estimates is proprietary.
relating to an owner or to the fact of owning something:
The employees have a proprietary interest in the company.
Compare
generic