A little-known public interest group this week asked the U.S. government to revoke a Microsoft patent that covers the company’s Windows file system.

The Public Patent Foundation on Thursday asked the U.S. Patent and Trademark Office to revoke one of Microsoft’s patents related to the FAT (File Allocation Table) file system, the older of two main systems used by Windows to store files.

“We are concerned that there is a potential for Microsoft to use its patent portfolio to foreclose competition from free and open-source software,” Public Patent Foundation founder and Executive Director Dan Ravicher said in an interview.

Source: ZDNet