The general retrieval method can refer to the following steps (taking the retrieval of the US Patent and Trademark Office as an example):
Enter the patent search page through the website of the US Patent and Trademark Office (uspto.gov/...atents)
Select the retrieval database, taking the full-text database as an example: USPTO patent full-text and image database (PATFT).
Enter the quick search.
Selecting "assignee's name" in the search field means searching according to the patent applicant.
Question 2: How to inquire about American patents on the website of the National Information Administration or the European Patent Office according to the patent number? Domestic search platforms can try to search according to rainpat.
Question 3: How to check American patents? The United States Patent and Trademark Office searched uspto.gov/patft/index online.
Question 4: How to query patft.uspto.gov/?? United States Patent and Trademark Office
You can use Quik search, advanced search and serial number search, and you can use keywords, patent numbers, inventors, etc.
Question 5: Where can I find American patents? Go to soopat and have a look
Or a patent star
Question 6: How to check the patent categories in the United States can be classified by IPC. This is the international patent classification number, which is relatively common.
Can you see the title page of this American patent?
If possible, please tell me that the sort number after "(51) int.cl." is similar to "A6 1B 2/00".
I can help you find out which field it belongs to.
Question 7: American patent inquiry always needs to know some information, such as who is the patentee, the approximate application date, whether the technology can determine several keywords and so on. Why didn't the Japanese give it to you? I'm afraid I'll charge the patent fee after you make the product, or there is no patent at all/the application is pending/the patent has expired, or the Japanese are just similar in technology, and I'm not sure whether the patent can cover the product.
Question 8: How can I tell whether this patent has been authorized by the U.S. patent number? Please give an example, thank you! American publications are called issuing, applying and granting patents.
The application number is 2+6, ***8 digits, the first two digits are serial numbers, and the last six digits are circular numbers, which means that the six digits of 000000-999999 are circulated in sequence.
The patent number is 7 digits. It consists of 1-7 digits, such as 5575 155, 5474 142, etc.
WeChat official account is 4+7, *** 1 1, and the first four digits are the year. Such as 200600000001,20050 158320, etc.
There will be a document type code after the number.
Document type identifier Document type description
A 1 patent application is published before authorization.
A2 Patent application is published (re-published) before authorization.
A9 Publication of Patent Application before Authorization (Amendment)
B 1 patent was not published before authorization.
B2 patent was published before it was granted.
C 1, C2, C3 re-inspection certificate original code B 1, B2 is used to grant patents.
E reprinted patents remain unchanged.
The inventions registered according to law have not changed.
The plant patent application was published before it was authorized.
P2 plant patent has not been published before authorization.
P3 plant patent was published before it was granted.
P4 publication of plant patent application before authorization (re-publication)
P9 Publication of Plant Patent Application before Authorization (Amendment)
American design patents remain unchanged.
Question 9: How to search the legal status of American patents in USPTO official website,
Question 10: How to tell whether an American patent is an invention or a utility model? There is no utility model in the United States, and the types of patents in the United States are invention patents, design patents and plant patents.
Invention patent: Only functional inventions can apply for invention patents. Inventions that can be applied include: processes, machines, products of manufacture and composition of matter. Among them, the program can be the method or new use of the above invention. The protection period is 20 years from the date of application.
Design patent: You can apply for a new design patent as long as it is a design. The scope of protection of a design patent is mainly limited to the appearance of the goods shown in the patent. Because opponents can easily evade new style patents by changing the design, the protection scope of the design patent is narrower than that of the invention patent. The protection period is 14 years from the date of authorization.
Plant patents: new varieties propagated asexually are protected by plant patents, but tubers and tuber plants are not included. The term of protection is 20 years from the date of application.