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Patent Searching

The FreePatentsOnline search engine is one of the most powerful, fastest and easiest patent search engines on the web. Our search allows advanced search techniques such as word stemming, proximity searching relevancy ranking and search term weighing to help you find exactly what you are looking for. Latent semantic searching is also available, and our account features let you organize, annotate and share documents, along with other helpful work-flow features.

Document Delivery

All documents are available in a highly-compressed PDF format for fast downloading, with or without searchable text. To establish an account, contact us.

Custom Patent Analytics Services

FreePatentsOnline offers numerous computed fields such as backward and forward citation counts, median reference age, claims counting, and more. Our sophisticated patent analysis tools can help you understand your own IP portfolio, or help with due diligence for IP acquisitions.

XML Data Feeds

FreePatentsOnline can supply you patent data in XML format to facilitate in-house patent data projects. For your convenience, the data feeds provided are normalized, which means all your patent information is in a uniform format, regardless of the patent issuing authority. We can provide XML data feeds tailored to your requirements, and if you need a field we don't have, talk to us about creating it!

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News & Updates

FreePatentsOnline, the best online site for free patent searching, has had a makeover. In addition to the graphical differences, the site has been completely rewritten to allow more users, more powerful functions, and more data. If you have comments or questions about the new site, let us know.