Meaning
Information or physical objects made available to the public before the filing date of a patent application that might challenge the novelty of the invention. This prior art evidence consists of patent documents or scientific publications. It provides the factual basis for the China National Intellectual Property Administration to determine if an invention is truly new and non-obvious.
Source Material
Databases of international patents and technical journals serve as the primary locations for identifying these records. For prior art evidence to be effective, it must be dated clearly and describe the technology with enough detail that a person skilled in the field could understand it.
Operational Strategy
Manufacturers perform freedom to operate searches to identify this information before launching a new product in the Chinese market. Finding relevant prior art evidence allows a company to modify its design to avoid infringement or to prepare a defense against potential litigation. This proactive approach reduces the risk of expensive court battles and production delays.
Evidentiary Weight
Legal proceedings in Chinese courts require that any document used as proof must be properly notarized and legalized by an embassy if it originates outside China. The evidentiary weight of the submission depends on its ability to clearly disclose the technical features of the disputed claim.
