Proprietary rights are rights which affect the land.
Proprietary rights are rights governing the ability of the people to use and enjoy the land.
Proprietary rights have a broad spectrum.
Proprietary rights may be narrow such as the rights to fish.
Proprietary rights may also be wide covering the ability to use and enjoy the land.
Proprietary rights will cover what you can or cannot do on the particular land you physically posses such as the ability to perform a business in the land.
Proprietary rights will cover what you can or cannot do on the particular land physically posses by another such as restriction on building or rights of way.
Proprietary rights are various and in a piece of land, people may have various proprietary rights such as one person has right to physically posses it, another a right to restrict the building and another a right to walk over it.
Proprietary rights will be enforced against everyone who may come to the land where the rights are exercised and not just limited to the person who exercised or granted it.