patent filing fee; patent maintenance fee
Refers to official fees paid to the patent office, such as application filing fees or annual maintenance fees.
The deadline for paying the patent filing fee is approaching next month.
If you do not pay the patent maintenance fee, the right will lapse.
royalty; patent usage fee
Refers to payments made to a patent holder for the right to use the patented invention, often in a licensing context.
You need to pay a royalty to use this technology.
Royalty income supports the company's profits.
Compound of 特許 (patent) + 料 (fee). The term is transparently derived from its components.