先せん行こう技ぎ術じゅつ

noun

prior art

Technical term used in patent law to refer to all publicly available information before a given filing date.

• 特とっ許きょ出しゅつ願がんの前まえに先せん行こう技ぎ術じゅつを調ちょう査さする必ひつ要ようがある。

  It is necessary to search for prior art before filing a patent application.