Of or relating to property or ownership. / Owning something; having ownership. / Created or manufactured exclusively by the owner of intellectual property rights, as with a patent or trade secret.

A proprietor or owner. / A body of proprietors, taken collectively. / The rights of a proprietor.

plural of proprietary

The quality of being proprietary.

Pertaining to proprietarians or proprietarianism (in colonial North America). / (uncommon) Proprietary or proprietorial; pertaining to property or ownership (of property).

(finance) Trading activity conducted by a securities firm for its own profit rather than for its clients.

A successful brand name or trademark that has come into general use to refer to the generic class of objects rather than the specific brand type, without the exclusive rights to said product being lost by the parent company.

plural of proprietary eponym

Alternative form of nonproprietary