1. The National Information Bureau temporarily refuses to accept buoyancy power generation, because the buoyancy power generation technology has not yet reached the relevant patent application standards and requirements, and the feasibility and innovation of the technology need to be further improved and verified.
2. Due to the limited funds and human resources, the National Information Bureau cannot accept a large number of patent applications at the same time, which leads to certain restrictions and choices in the examination and acceptance of certain technical fields.