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.
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.
Search syntax involved in 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.
Detailed operation flow of patent retrieval 4. Basic steps in the process of patent retrieval (drafting 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 tasks, in principle, patent retrieval personnel still carry out related work and operations (of course, researchers can also conduct retrieval on their own). Among them, the role of patent retrieval personnel 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.
For more patent application questions, please visit guaguazhiwang:/zhuanglishenqing/