/ˈpɜːtɪnənt ɑːt/ – Phrase
Definition: Liên quan đến nghệ thuật hoặc vấn đề cụ thể.
A more thorough explanation: (PATENT LAW) knowledge accumulated in scientific fields whose techniques have been commonly used to solve problems similar to the problem that a patented device attempts to solve
Example: Examiners are encouraged to cite all pertinent art published prior to the international filing date.