1. US Patent Office
2. China National Intellectual Property Administration Patent Office, China
Provide an article, transferred from a book published in China National Intellectual Property Administration, I hope it will help you.
Method of searching patent information for free on Internet
With the rapid development of science and technology, people's patent awareness is getting stronger and stronger, and more and more people are looking for patent information. Patent information has irreplaceable value and function for other information inquiry. According to incomplete statistics, more than 1 10,000 patent documents are published in more than 70 countries every year, accounting for about1/4 of the total number of scientific and technological publications in the world; According to the statistics of the World Intellectual Property Organization (WIPO), more than 90% of the inventions in the world are published in the form of patent documents. However, people's use of patent documents is not satisfactory: according to the latest statistics of the European Patent Office (EPO), Europe wastes about $20 billion in investment every year due to repeated research; In the last five years, there is only about 1/3 of Europe.
European companies use the patent system, while the remaining 2/3 companies do not; If we can make good use of patent literature, we can save 40% R&D funds and 60% R&D time. Therefore, people should attach great importance to the development and utilization of patent information resources. However, it is difficult and arduous for scientific and technical personnel who are not familiar with special cultural relics retrieval methods to find patent documents related to their professional fields among many documents. Therefore, it has become a problem that scientific and technological workers and information service personnel must solve as soon as possible to obtain patent information conveniently and quickly. Nowadays, the construction of information superhighway provides a convenient and quick channel for us to find patent documents. There are abundant patent information resources on the Internet. You can not only consult the latest patent announcements of major industrial countries, but also download complete patent documents. Thus, the scientific and technical personnel are liberated from the mountain of paper retrieval and their enthusiasm for patent literature retrieval is improved. At the same time, it provides a simple and easy method for popularizing patent literature retrieval. This paper will mainly introduce the method of searching patent information for free on the Internet.
China patent literature database.
This is a China patent literature database jointly developed by Beijing Coin Economic Information Center and Beijing Coin Patent Office for online users to inquire for free. It is comprehensive, daunting and practical. It contains all invention patents and utility model patents published by China Patent Office since 1985, totaling about 470,000 pieces, including titles, abstracts and claims. Patent name, abstract, claims, applicant and other 27 description fields. Users can select one of the description fields as needed, and enter keywords for a single full-text search. You can also select two OR more description fields AND use (AND) or (OR) for Boolean retrieval.
2. China Patent Information Network
Netizens can register with patent service agencies for free, and after registration, they can see limited free services. By requesting in advance, you can get the title, abstract and even front of each patent for free, which is conducive to tracking the latest progress in foreign patent-related fields. The retrieval methods include: ① Simple retrieval. Query the relevant patent number and patent name according to the time period selected by the user and the keywords entered. ② Patent number retrieval. Abstracts and full texts of patent documents are extracted according to the patent numbers input by users. ③ Boolean retrieval. Users can define seven top-level items and any items such as patent name, abstract, claim, inventor, assignee and agency in the drop-down menu, input keywords and select the maximum inspection.
Find the result number, carry out Boolean operations of AND, or and NOT, and thus buy more complex retrieval formulas. (4) Advanced retrieval in the second decade. Users can fill in key patents in the corresponding items of any top, inventor, assignee, patent name, abstract, patent requirements and agency. Advanced search can carry out more than two AND searches; However, the NOT (or, not) operation cannot be performed between projects. In addition, China Patent Information Network can not only search for China patents, but also search for foreign free patents.
3. derwent patent database
http://
The World Patent Index (WPI) published by British derwent Company mainly collects patents from industrialized countries and reports patents obtained in various fields of engineering technology, and adopts the international patent classification system, all of which are English abstracts. WPI database contains 7 million data, covering 37 countries and two international patent organizations. The content includes English description items, data and abstract. There is also an international patent copying service, which can provide users with patent specifications issued by major institutions around the world. The company also launched a patented browser). Including 200 American patent documents since 1974 and 200 European patents since 1000 1978. It is the first system on the Internet to provide patented ophthalmology services in the United States and Europe, with the same main text and images. Derwent Company pays attention to the design of the retrieval system, which not only provides users who are not familiar with the structure of patent documents with a click-and-click retrieval method, but also provides people who are proficient in the retrieval path with Boolean logic matching query for more than 40 independent data by inputting text boxes. All elms in the patent resource manager are free, allowing users to save search results and providing a complete set of document delivery services.
4 Shadow Patent Office
1998 65438+February 3 1 has been changed to
SPO is a part of the well-known EDS (Electronic Data System), which provides the retrieval service of American patent full-text database. This database collects all patent documents published by the US Patent and Trademark Office since June 1972+ 10. One of the characteristics of this retrieval is that this paper provides a context-based retrieval method to query patent information, and its results are more accurate than those obtained by keywords. Its main free retrieval services are:
-Browse recent patents. Browse the patent names and patent numbers published in the United States in the last year for free. Patent data is changed once a week, including the latest American patents. According to the American patent classification, the patent name R and patent number are arranged in weeks.
-Subject search. Users can search the patent literature since 1995. This website adopts a context-based retrieval method. Users only need to enter descriptive words within 1000 words to express their search requirements, and the system can automatically delete irrelevant domestic trade. The search results give the most relevant information such as patent name, patent number, patent release time and patent classification number according to the user's theme requirements.
5.USPTO patent database
It is a non-commercial federal agency with the participation of the US government. Its main service content is to handle patents and trademarks and transmit patent and trademark information. Its patent database includes bibliographic patent database, which collects patents from the United States since 1976, with full-text and video materials. This patent database can be used for free on the Internet.
The address of USPTO on the Internet is:
The website of USPTO patent database is:
It should be pointed out that the USPTO patent database does not provide patents before 1976. If you want to get them, you can directly click on the link of "PT DLS" patent and trademark preservation library); If the searcher can provide the patent number, he can also obtain the corresponding patent by clicking "order copy". In addition, USPTO bibliographic patent database only provides bibliographic patent information free of charge. If searchers need full-text or video materials, they can link our copies to get them.
6.IBM Patent Server (American Patent Library)
1997 1 month, IBM launched a free online server for users around the world to search American patent information. Including some patents of 197 1- 1973 and all patent documents published by the United States Patent and Trademark Office (USPTO) after 1974, totaling more than 2 million articles, which can be searched in two phases. There are four retrieval methods for users to choose from: ① Simple retrieval. Query the relevant patent number and patent name according to the time selected by the user and the keywords entered. ② Patent number retrieval. According to the patent number input by the user, the patent abstract and the full text of patent literature are extracted. ③ Boolean retrieval. In the drop-down menu of users and users, seven items such as patent name, abstract, patent claim, inventor, agency and any item are restricted, keywords are input, the maximum number of search results are selected, and, or Boolean search operations are performed. No operation is perform, so that a more complicated search is realize. ④ Advanced retrieval. Users can fill in any item, inventor, assignee, patent name, abstract, claim and corresponding items of agency to search for the patents specified by keywords. The difference between advanced retrieval AND Boolean retrieval lies in: AND can retrieve more than two items, which has the advantage of higher precision; But the NOT (or, NOT) operation cannot be performed between the tops.
This is a good website for finding American patents. It provides a convenient way for online users to obtain patents by searching and downloading the full text of patent documents for free.
7. Other patent information service websites
(QPAT- USA)
1in April, 1996, Questel-Orbit launched the website of American patent retrieval system, which has 1974 in the original American patent, with more than 800,000 patent records. After paying 1995 USD every year, you can search, browse and download the required patent literature. The US patent homepage can be searched online for free.
Miniature patent
The patent web page provided by micro-patent company was purchased by American InFORMation Ver-tures Company at the end of 1997. The system has American patents since 1994, European patents since 1992 and world patents since 1988. 1998 adds home page data of American patent and Japanese patent literature of 1964- 1974. The system also provides a free homepage query of the latest patents in the last two weeks, and the search results give the patent number and military name.
Canadian patent database
British patent office
German patent office
European patent office
Japan patent office
Japan Patent Information Organization
In addition, such countries as Austria, Australia, Brazil, Canada, Croatia, Denmark, Finland, Germany, Hungary, North Korea, Macedonia, New Zealand, Peru, Poland, Portugal, Romania, Spain, Sweden, Turkey and China, Hong Kong Patent Office.
Patent search can be found on the website of Japan Patent Office.