/ˈpʌblɪk ˈpraɪər ˈjuz/ – Phrase
Definition: việc sử dụng công khai trước.
A more throughout explanation: “Public prior use” refers to the legal concept where an invention or innovation has been publicly used or disclosed by someone other than the inventor before the inventor’s own filing date for a patent application. This public prior use may impact the inventor’s ability to obtain a patent for the invention, as it could be considered prior art that may invalidate the patent application.
Example: The company claimed that the patent was invalid due to public prior use of the technology before the filing date.