How can I tell if a patent has been granted by a U.S. patent number? Please give an example, thank y

The application number is 2+6, a total of 8 digits, the first two are the serial number, and the last six digits are the cycle number, that is to say, the six numbers 000000-999999 are cycled in order.

The patent number is 7 digits. It consists of 1-7 digits, for example: 5575155, 5474142, etc.

The publication number is 4+7, with a total of 11 digits, and the first 4 digits are the year. Such as etc.

The number will be followed by a document type indication**.

Document Type Identification** Document Type Description.

A1 Disclosure of patent application Disclosure before grant.

A2 Publication (re-disclosure) of patent application Disclosure before grant.

A9 Disclosure of patent application (amendment) Disclosure before grant.

B1 Patents were not disclosed prior to grant.

B2 Patents Published prior to grant.

C1, C2, C3 Re-examination Certificate The original **B1 and B2 are now used for granted patents.

e Reprint Patent No change.

h Inventions registered in accordance with the law No change.

P1 Disclosure of plant patent applications Disclosure before grant.

P2 Plant Patents were not published prior to grant.

P3 Plant patents were published before they were granted.

P4 Publication (republication) of plant patent application Disclosure before grant.

P9 Publication of plant patent applications (amendment) Disclosure before grant.

s design patent no change.

Upstairs is already detailed, add a point.

ep European Patent Office.

A1 Specification Search Report.

A2 Instruction manual only.

A3 Retrieves reports only.

B1 Authorized patents examined.

B2 Patents as amended after opposition proceedings.

United States Patent and Trademark Office.

a1 Publication of the patent application.

A2 Republication of patent applications.

B1 Undisclosed prior to authorization.

b2 Disclosed prior to authorization.

Chinese Patent Office.

a Publication of patent applications.

c Authorized version.

Types of U.S. Patent Documents and Their **.

Patent specification (United States Utility Patent), document type identification** A(B1,B2).

United States Plant Patent, Document Type Identification** P(P2, P3).

Reissued Patent, Document Type Identification**(e).

Reexamination Certificate, Document Type Identification** B1, B2 (C1, C2, C3).

Statutory invention registration, document type identification** h

United States Design Patent, Document Type Identification**(S).

U.S. patents can be searched by logging in the following **.

1. United States Patent and Trademark Office**.

United States Patent and Trademark Office.

2. European Patent Office.

European Patent Office.

4. State Intellectual Property Office.

State Intellectual Property Office.

3. Patent information service platform for Chinese enterprises.

China Patent Information Network.

The authorized patent number is to add zl before the application number, the application number is "application year (4 digits) + patent type + serial number", and patent type 1 is invention 2 is utility model 3 appearance.

The application number of the United States is 2+6, a total of 8 digits, the first two are the serial number, and the last six digits are the cycle number, that is to say, the six numbers 000000-999999 are circulated in order.

The patent number is 7 digits.

The publication number is 4+7, with a total of 11 digits, and the first 4 digits are the year.

If there is an invention name, you can enter the invention name to search; If there is no title of the invention, if there is an applicant and an inventor, the applicant and inventor can also be entered for search; Inquiry**There are Dawei, Bai Teng and so on**.

1. You can go to the National Patent Office for inquiry.

2. Enter the patent number in the query bar and check the legal status of the patent, and you can see what status the patent is in.

3. Utility model and appearance patents can only be found after authorization. If an invention patent can be granted and said to be authorized, there is only a disclosure specification, then it is not authorized.

4. The patent number is the number given when the patent is granted, and it is a kind of document number.

Legal basis] Article 3 of the Patent Law stipulates that the patent administration department is responsible for managing the patent work nationwide; Uniformly accept and examine patent applications, and grant patent rights in accordance with the law. The departments of provinces, autonomous regions and municipalities directly under the Central Government in charge of patent work shall be responsible for the administration of patents within their respective administrative regions. *

China Patent Office Inquiry**.

European Patent Office Access**.

The U.S. Patent and Trademark Office (**: contains information on U.S. patent specifications, patent gazettes, patent classifications, patent legal status, and assignment and assignment of patent rights.

If you know the application number or public number, you can check it on the website, and the verification code cannot be issued by logging in to the public pair on the domestic network.

You can go to the domestic Dawei patent search, WIPO patent search, etc.

How to check foreign patents if a cross-border e-commerce novice does not understand a foreign language? See here to teach you how to query.

U.S. patents can be searched through the U.S. Patent and Trademark Office** (access the patent search page through the U.S. Patent and Trademark Office** (Patents - Search for Patents)

Select the search database, in this example, the full-text database is USPTO patent full-text and image database (patft).

Go to Quick Search

You can search by patent number, application number, applicant and other field information.

Or go to Advanced Search to make your own search queries for more complex queries.