Micrrosoft File Allocation Table (FAT) patents

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General Information

• Detailed FAT Patent information, licensing information and History on Wikipedia

News & Chronology

• 2006-01-26 Microsoft's file system patent upheld

• 2004-07-29 USPTO to reexamine MS FAT patent

• 2003-12-09 MS announces FAT licensing program

Patent Situation in Europe

Two of the four patents on which Microsoft's royalty demands are based have also been granted by the European Patent Office:

• US5579517 = EP618540 (B1): Common name space for long and short filenames

  • http://v3.espacenet.com/textdoc?IDX=EP618540

  • http://swpat.ffii.org/pikta/txt/ep/0618/540/

• US5745902 = EP0578205 (B1): Multiple file name referencing system.

  • http://v3.espacenet.com/textdoc?IDX=EP0578205

  • http://swpat.ffii.org/pikta/txt/ep/0578/205/

• US5758352

• US6286013