Why choose the right patent database? Because patents are regional, if the inventor's technology or technology extension goods are to be used, sold and manufactured in a certain country, then it is necessary to apply for patent protection in that country. In addition, because patent information is a kind of technology disclosure to encourage inventions, all countries will apply for or disclose the approved invention patents in that country, so there is a free national database.
However, patent applications and layouts often involve several countries. Therefore, it is not only a waste of time to search separately in different free patent databases, but also an error will occur because different databases use different languages and grammars (each country's databases use different grammars). Therefore, it is particularly important to choose a comprehensive source file library with a lot of data.
2. Contents contained in the general patent database
Take Patents Search, a patent analysis system, as an example. The system includes USPTO (English full text of open database and authorized database), EU EPO, Japanese JPO, Korean KPO, China SIPO, Germany, Britain (GB), France (FR), Switzerland (English bibliography), WIPO PCT and other patent databases. In a word, these patent databases make it easier for users to search multinational patents at the same time by building a unified search interface.
3. Search syntax involved in the general patent database.
Let's give an example, such as "(automobile or auto *) and (Siemens or Hyundai). Associated Press. And navigation. AB。 And @ ad > =19860301<; =199310 "means that" (automobile or auto*) "appears in all fields," (Siemens or Hyundai) "appears in the patentee," navigation "appears in the abstract, and the application time is1March 0, 986/kl.
4, the basic steps in the process of patent inquiry (keywords)
What needs to be done in the second stage is to draw up keywords, among which the method of "drawing up keywords" includes five items. They are 1. Basic keyword drafting (researcher), 2. Synonym extension (researcher), 3. Advanced Term Extension (Patent Engineer), 4. Company name merge (IT engineer) and 5. Time and technology classification restrictions (patent searchers). In the above five items, people in brackets indicate which role should play the main role, such as the formulation of basic keywords, which we think should be provided by researchers and the extension of superior terms should be provided by patent engineers. In addition, in the above five main work items, in principle, patent inquirers are still responsible for the implementation and operation of related work (of course, researchers can also search by themselves), in which the role of patent inquirers is to cooperate with different experts to complete patent retrieval and analysis, and the related detailed operation skills will be further explained in future columns. Patent inquiry is a means and process, and reading analysis after information retrieval is the purpose and importance.
Once the above inquiry procedure is completed, we can use the results obtained from patent search to read and analyze patents. Take the patent analysis system provided by Baiteng Patent Retrieval System as an example. In principle, the most basic way to read patents is of course to start with the first one. For example, when 375 patents are retrieved this time, patent searchers can print these 375 patents one by one for the reference of relevant patent engineers or R&D personnel. However, patent information can be used in many different places, so we initially divide patent reading and analysis into three parts, namely, preliminary patent statistics (patent searchers), patent reading skills (researchers) and patent application scope deconstruction (patent engineers). In other words, patent searchers can use patent retrieval skills to find key patents or provide similar patent combinations for researchers to further interpret patents. Of course, it should be emphasized that the work of preliminary patent statistics is mainly to accelerate the interpretation of patent technology content and rights content, and it cannot replace the interpretation of final patents. In addition, the most important part of patent is not the explanation of technical content, but the deconstruction of patent claims with legal effect in patent specification. The so-called deconstruction of patent application scope means that patent engineers judge the scope protected by independent items or subsidiary items for each application scope (that is, the scope of rights granted to this patent by law), and finally construct the matrix relationship of patent application scope according to the application scope covered by each patent.