The essential conditions of invention patent authorization include: (1) novelty, which means that the invention does not belong to the existing technology; No unit or individual filed an application for the same invention or utility model with the administrative department for patent in the State Council before the filing date, and it was recorded in the patent application documents published or announced after the filing date. (2) Creativity means that compared with the prior art, the invention has outstanding substantive features and remarkable progress, and the utility model has substantive features and progress. (3) Practicality means that the invention can be manufactured or used and can produce positive effects. (P 132- 139)
Answer analysis
Knowledge points of this question: overview,