Search for the legal status of patent

The legal status of patent refers to the right type, right maintenance, right scope and right ownership of a patent application or authorized patent in a certain country at a certain point in time, which will directly affect the existence and scope of patent right. Considering from time and space, the legal status of patent generally includes four aspects: region, time, ownership and scope of protection. Among them, regionality mainly refers to: in which countries a patented technology has been patented, in which countries it has not been patented, and in which countries it may be protected in the future. In terms of time, it refers to: how long is the protection period of a technology in this country, whether it enters the protection period, and how long is the remaining protection time. The ownership of patent right mainly refers to whether the patent right of a certain technology has been transferred, who is the current patentee and who is the actual owner of the patent. The scope of patent protection mainly refers to whether there are follow-up procedures after patent authorization and whether the scope of patent protection has changed. Patent query retrieval Patent legal status retrieval refers to the retrieval of the current legal status of a patent or a patent application, the purpose of which is to know whether the patent application is authorized, whether the authorized patent is valid, whether the patentee has changed, and how other information related to the patent legal status is. The common types of legal status retrieval mainly include: the patent right is valid, the patent term expires, the patent application is not authorized, the patent application is withdrawn or deemed withdrawn, the patent application is rejected, the patent right is terminated, the patent right is invalid or partially invalid, and the patent right is transferred. Among them, the term of validity of a patent refers to the patent that has obtained the patent right on the retrieval date and before the retrieval date and is still valid. In order to keep the patent valid, the patent should not only be within the legal protection period, but also the patentee should pay the annual fee on time according to the regulations.