Free 60 Day PatentHunter International Trial!

We are so confident that you will see the benefits of PatentHunter International for your business or law firm that we offer a Free 60 Day Trial! There is no registration required to use this 60 day trial version and it provides you with access to the full power of PatentHunter for your business.

Please note that there is a 50 MB limit on foreign patent downloading in the trial version. Once you've met the maximum foreign downloads or exceeded 60 days, you will need to purchase a subscription to continue using PatentHunter International.


Problem with PatentHunter? Here are Two Common Reasons:

  1. Using Older Version of PatentHunter. The USPTO website is sometimes updated requiring corresponding changes to PatentHunter®. You need to download and install the latest version of PatentHunter to ensure proper functionality of the program. To ensure that you have the latest version of PatentHunter installed, go to our Download Section (to see your current version, go to Help/About).
  2. USPTO Website Not Working. If you are running the latest version of PatentHunter (see above) but are still encountering download/searching problems, this may be related to the USPTO website having server problems. To verify this, simply (i) go to the USPTO Website and (ii) enter a patent number you are having problems with. If you receive an error message from the website, try again in an hour or so (once the USPTO website is operating again, PatentHunter will then be able to download/search patents again).

Still having problems? View our Knowledge Base for further guidance:

If the above does not address your issue, then please complete the form below to submit your support issue. We attempt to contact all support inquiries the same day via e-mail or telephone if possible.