royalties

n. sovereignty, royal status or power; kingdom; domain, realm; member of a royal family; percentage of profits paid to an artist for each copy of his work that is sold

Royalties (sometimes, running royalties) are usage-based payments made by one party (the "licensee") to another (the "licensor") for ongoing use of an asset, most typically an intellectual property (IP) right. Royalties are usually determined periodically as a percentage of gross or net sales derived from use of the asset or a fixed price per unit sold. . A royalty interest is the right to collect a stream of future royalty payments, often used in the oil and gas industry to describe a percentage ownership of future production or revenues from a given leasehold, which may be divested from the original owner of the asset.
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Noun
1. payment to the holder of a patent or copyright or resource for the right to use their property; "he received royalties on his book"
(hypernym) payment
2. royal persons collectively; "the wedding was attended by royalty"
(synonym) royal family, royal line, royal house
(hypernym) house
(hyponym) Hanover, House of Hanover, Hanoverian line
(member-meronym) Highness

(pl. )
of Royalty
  

Payments made to the developer (inventor) of a product based on the amount of product sales.