Additional Patent Data Products

Patent Assignment Text (1980-current Calendar Year)

A patent assignment is a transfer of ownership of a patent application or patent from one entity to another.

A patent assignment document contains assignor name and index and assignee name and index.  

This data contains both the daily (front file) patent assignment text (no drawings/images) for the current Calendar Year (January through December) derived from patent assignment recordations made at the USPTO for granted patents. The file format is eXtensible Markup Language (XML) in accordance with the Patent Assignment Daily XML (PADX) Version 2.0 Document Type Definition (DTD). Available daily at 01:30 AM U.S. Eastern Time. This product includes an adyyyymmdd.zip file each day and within each daily zip file are adyyyymmdd.xml.

Average file size is 5 MB (compressed).

Choose this product if you need assignment information.

More Assignment Information: www.uspto.gov/faq/assignments.jsp

Download Product: www.google.com/googlebooks/uspto-patents-assignments.html or https://eipweb.uspto.gov/TOC/

(*Note that a back file for the previous Calendar Year is also available at the links above.)

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Patent Maintenance Fee Events (1981–current Calendar Year)

A patent maintenance fee is a charge for maintaining all granted patents.

A patent maintenance fee document contains patent number, application number, small entity designation, U.S. Application filing date, U.S. grant issue date, maintenance fee event entry date, and maintenance fee event code.

This data contains recorded maintenance fee events for patents granted from September 1, 1981 to the current Calendar Year. Each new weekly file is cumulative. The file format is ASCII Text. 

Average file size is 65 MB (compressed) per week.

Choose this product if you need maintenance fee information.

More Maintenance Fee Information: www.uspto.gov/patents/process/maintain.jsp 

Download Product: www.google.com/googlebooks/uspto-patents-maintenance-fees.html or https://eipweb.uspto.gov/MaintFeeEvents/

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Master Classification File (MCF)-Patent Grant (1790-current Calendar Year)

A classification is a way to group patents by their subject matter.

A classification document contains class and subclass information as well as patent grant number.

This data contains current calendar year U.S. classification information for all patent grants issued by the USPTO from 1790 to the current Calendar Year. Approximately 450 main divisions of technology, called classifications/classes, broken into approximately 150,000 subdivisions, called sub-classifications/subclasses. Provided in patent grant sequence, by patent grant number with the current U.S. original classification/sub-classification and any cross-reference classification/subclassifications. The format is ASCII text. Data is available on or before the 15th of each odd month and contains data through the end of the previous even month. Each new bimonthly file totally replaces the previous file. 

Average file size is 121 MB (compressed) per bimonthly file.

Choose this product if you need classification information by patent grant number.

More Classification Information: www.uspto.gov/patents/resources/classification/index.jsp

Download Product: www.google.com/googlebooks/uspto-patents-class.html or https://eipweb.uspto.gov/TOC/

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Master Classification File (MCF)-Classification (1790-current Calendar Year)

This data contains current U.S. classification information for all patent grants issued by the USPTO from 1790 to the current Calendar Year. Approximately 450 main divisions of technology, called classifications/classes, broken into approximately 150,000 subdivisions, called sub-classifications/sub-classes. Provided in classification sequence, by U.S. classification/sub-classification (original and cross reference) followed by patent grant number. The format is ASCII text. Data is available on or before the 15th of each odd month and contains data through the end of the previous even month. Each new bimonthly file totally replaces the previous file. 

Average file size is 119 MB (compressed).

Choose this product if you need classification information organized by classification sequence.

More Classification Information: www.uspto.gov/patents/resources/classification/index.jsp

Download Product: www.google.com/googlebooks/uspto-patents-class.html or https://eipweb.uspto.gov/TOC/

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Master Classification File (MCF)-Patent Application (March 15, 2001 - current Calendar Year)

This data contains current U.S. classification information for all patent applications (non-provisional utility and plant) published by the U.S. Patent and Trademark Office from March 15, 2001 to the current Calendar Year. Approximately 450 main divisions of technology, called classifications/classes, broken into approximately 150,000 subdivisions, called subclassifications/subclasses. Provided in published patent application number sequence with the current U.S. original classification/subclassification and any cross-reference classification/subclassifications. The format is ASCII text. Available on or before the 15th of each odd month and contains data through the end of the previous even month. Each new bimonthly file totally replaces the previous file.

Average file size is 23 MB (compressed) per bimonthly file. 

Choose this product if you need to search classification number associated with a particular patent application number.

More Classification Information:  http://www.uspto.gov/web/offices/opc/

Download Product: http://www.google.com/googlebooks/uspto-patents-class.html or https://eipweb.uspto.gov/TOC/

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U.S. Manual of Classification File (CTAF) (current Calendar Year)

This data contains numbers and descriptive titles of the patent classifications and sub-classifications (classes/subclasses) for approximately 450 classes and approximately 150,000 subclasses of the U.S. Patent Classification (USPC) System in the current Calendar Year. This file is the electronic version of the paper version of the Manual of Classification. The format is ASCII text. Available on or before the 15th of each odd month and contains data through the end of the previous even month. Each new bimonthly file totally replaces the previous file. 

Average file size is 2.9 MB (compressed).

Choose this file if you want classification information organized by number and title.

More Classification Information: www.uspto.gov/patents/resources/classification/index.jsp

Download Product: www.google.com/googlebooks/uspto-patents-class.html or https://eipweb.uspto.gov/TOC/ 

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Index to the U.S. Patent Classification File (a.k.a., U.S. Classification Index File (CLASINDX)) (current Calendar Year)

This data contains an alphabetical list of subject headings that refer to specific classifications and sub-classifications (classes/subclasses) of the U.S. Patent Classification System – (i.e., technology categories) for the current Calendar Year.  Also known as, the Classification or Class Index File.  There are approximately 67,000 items contained in this index. The format is ASCII text. Available on or before the 15th of each odd month and contains data through the end of the previous even month. Each new bimonthly file totally replaces the previous file. 

Average file size is 1.1 MB (compressed).

Choose this file if you want classification information organized alphabetically by subject.

More Classification information: www.uspto.gov/patents/resources/classification/index.jsp

Download Product: www.google.com/googlebooks/uspto-patents-class.html or https://eipweb.uspto.gov/TOC/

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U.S. Classification Definitions

 Download Product: https://eipweb.uspto.gov/TOC/

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U.S. Classification Orders Index

 Download Product: https://eipweb.uspto.gov/TOC/

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U.S. Patent Classification (USPC) to International Patent Classification (IPC) Concordance

 Download Product: https://eipweb.uspto.gov/TOC/

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Patent IFW Petition Decisions (2003-previous Calendar Year)

A petition is a special request to the USPTO by the inventor or attorney.

A petition document contains images of petition decisions.

This data contains the images of petition decisions from the USPTO Image File Wrapper (IFW) System from 2003 to the previous Calendar Year. IFW is one of the components of the USPTO Public Patent Application Information Retrieval (PAIR) System. The images are TIFF (Tagged Image File Format) with CCITT Group 4 Compression. The IFW Petition Decisions are organized by an eight digit patent application number (two digit series code plus a six digit application number) ascending. Each zip file contains TIFF image file(s) and a “metadata.xml” file associated with the TIFF image(s) in the zip file.

Approximate file size is 14 GB (compressed).

Choose this file if you want petitions information.

More Petitions Information: http://www.uspto.gov/about/offices/patents/pep/office_of_petitions.jsp

Download Product: www.google.com/googlebooks/uspto-patents-petitions.html

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Patent Application Retrieval (PAIR) System

Public PAIR is the Patent Application Information Retrieval System.

Public PAIR extract documents contain patent ownership information.

This data contains over 250,000 published patent applications with text and image content from the Public Patent Application Information Retrieval (PAIR) System. The text is tab delimited (.tsv) and the images are in Adobe format (.pdf).

Each zip file contains:

• A README.txt file which indicates when the data was obtained.
• Data files (*.tsv), in tab-delimited text format, compatible with many spreadsheet programs.
  • Each data file represents one tab from PAIR: Address and Attorney/Agent, Application Data, Continuity Data, Foreign Priority, Image File Wrapper, Patent Term Adjustments / Extension History, or Transaction History.

Data tables from PAIR are organized either by:

• Labels in the first column. (Example: “Application Data” tab.) The second column contains the corresponding value (example: “Application number” and “12/102,391”) or
• Labels in the first row. (Example: “Transaction History” tab, with labels such as “Date” and “Transaction Description”.) Each subsequent row contains the corresponding values for one data item. (In the example, each row represents a single transaction.)

Some *.tsv files contain more than one table, separated by a blank line.

The “Image File Wrapper” data file is put in a separate directory along with the additional content that it links to. An extra “Filename” column is added to the *.tsv file to indicate the corresponding file.

This data is only available for patent applications which have an "Image File Wrapper" tab on the USPTO PAIR web site.

Choose this file if you want patent ownership information.

More PAIR Information: www.uspto.gov/ebc/pair/pair_faq.html

Download Product: www.google.com/googlebooks/uspto-patents-pair.html

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Manual of Patent Examining Procedure (MPEP)

This data provides patent examiners, patent inventors, and attorneys/representatives of patent applicants with a reference work on the practices and procedures relative to prosecution of patent applications at the USPTO.

Download Product: www.uspto.gov/web/offices/pac/mpep/mpep.htm

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Electronic Official Gazette (eOG:P) (Rolling 52 weeks) SEARCHABLE

This data is published each Tuesday, the eOG:P includes bibliographic information, a representative claim, and a drawing (if applicable) of each patent issued that week. Patents are accessible by type of patent (utility, plant, etc.), classification (class or class/subclass), patentee name, and geographical location. Links enable users to "jump" to a specific patent from these various indexes. Includes U.S. Patent and Trademark Office Notices which provide important information and changes in rules concerning both patents and trademarks are also included.

A rolling year's worth of eOG:P are available for no charge at:  http://www.uspto.gov/web/patents/patog/

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Electronic Official Gazette (eOG:P) (Rolling 52 weeks) DOWNLOADABLE

This data is published each Tuesday, the eOG:P includes bibliographic (i.e., front page) information, a representative claim, and a drawing (if applicable) of each patent grant issued that week. Includes U.S. Patent and Trademark Office Notices which provide important information and changes in rules concerning both patents and trademarks.

A rolling year's worth of eOG:P are available for no charge at:  https://eipweb.uspto.gov/PatentOfficialGazette/ 

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Patent Technology Monitoring Team (PTMT) Statistics

Multiple products available at http://www.uspto.gov/web/offices/ac/ido/oeip/taf/reports.htm

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