Patent Center is available to all users to check the status of your patent application and review the file history.
Application Number - Made up of a two-digit series code followed by a six-digit serial number which is assigned by the USPTO (Example: 99999999 or 99/999999)
Patent Number - Made up of 6 to 8 characters and is formatted as follows:
- Utility : Consist of six, seven or eight digits. Enter number excluding commas and spaces and omit leading zeroes
- Reissue : (e.g.,RE99,999 or RE99999) must enter leading zeroes between "RE" and number to create 6 digits
- Plant Patents : (e.g.,PP99,999 or PP99999) must enter leading zeroes between "PP" and number to create 6 digits
- Design : (e.g.,D999,999 or 'D999999) must enter leading zeroes between "D" and number to create 7 digits
- Additions of Improvements : (e.g., AInnnnnn) must enter leading zeroes between "AI" and number to create 6 digits
- X Patents : (e.g., Xnnnnnnn) must enter leading zeroes between "X" and number to create 7 digits
- H Documents : (e.g.,H999,999 or H999999) must enter leading zeroes between "H" and number to create 7 digits
- T Documents : (e.g., T999,999 or T999999) must enter leading zeroes between "T" and number to create 7 digits
PCT Number – PCT/CCYYYY/NNNNNN or PCT/CCYY/NNNNN, where C = Country Code, Y = year filed, and N = 5 or 6 digit number.
Publication Number - Made up of a four-digit year, followed by a seven-digit sequence code followed by a two-character Kind Code that is assigned by the USPTO. USPTO (Example US 9999-9999999 A9', '9999-9999999 A9', '9999-9999999', 'US 99999999999 A9', '99999999999 A9', '99999999999).
International Registration Number - Is a six digit number preceded with "DM/" assigned by the International Bureau (IB) of the World Intellectual Property Organization (WIPO). (Example: DM/999999)
Search by Attorney Docket Number - An Attorney Docket Number is a Reference text of up to 25 alphanumeric characters that is used to identify a patent application. This number is not assigned by the USPTO and can be any combination of numbers and letters. Logged in registered users can enter complete or partial Attorney Docket Numbers to retrieve a list of applications. The user can search by Attorney Docket Number on the Patent Center homepage. The system can perform a wild card search when the user enters in an * and a partial Attorney Docket Number. The user can also perform an Attorney Docket Number search on the Workbench/Applications page using the Attorney Docket # filter. This option requires entry of at least the first three characters of your Attorney Docket Numbers to be located after selecting the "Start with" radio button option. The user will also be able to add or modify Attorney Docket Numbers from the query results after clicking the Apply filter button.
XML - The XML download functionality is available in Patent Center and allows the user to download Bibliographic data in XML format. Bibliographic XML data may be downloaded either for a specific application or for multiple applications whose status has changed in the past 6 months. XML downloads for multiple applications is available under Workbench/Applications.