IMPORTANT: MaxVal’s free tools use patent data from the EPO. Occasionally, EPO restricts the data availability and our tools may be unavailable during such times. We are working on alternatives to make our tools available at all times. Thanks for your understanding. For any immediate queries or requests, please contact

Note: This tool requires Java (Version 7 - update 51) to be installed and enabled on your web browser.
Browser Recommendation: Firefox 51 or below / Internet Explorer 9,10 or 11.
Disclaimer: The family tree is grouped genealogically based on priority information extracted from INPADOC

The Patent Family Tree Generator (PFTG) is used to generate patent family trees for given patents. Given a patent #, application # or publication #, PFTG will generate a graphical tree representation of the family based on genealogy and timeline.

Patent Family Tree#
Enter your document number
Please select number type
E.g.: 8,483,280 or US8483280 or US8483280B2 (any 7 or 8 digit US patent number)
E.g.: 2002132900 or 20020132900 (any US publication number)
E.g.: 10/095,222 or 10095222 (any US application number)
E.g.: WO9921937A1 or EP1025184A1 (Any foreign patent/publication/application number as it appears in Espace or INPADOC)
*Do not use any Provisional, Reissue or Design patent numbers
Enter your work email ID
MaxVal does not track usage. Only the name, email address, and tool used are collected.
I am a


How-To Guide | Download Sample PFT PDF

Demo Video

Click on the video below to view a demo on how this tool works

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