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Microsoft FAT patents
Microsoft has a number of patents on how to deal with filename in their commonly used FAT filesystem. These patents have been issued in the USA, Germany, and surely a long list of other countries.
The FAT patents have the interesting property of being useful only for compatibility with the patent owner. The FAT patents are not otherwise useful; in fact the FAT filesystem is technically undesirable. Those who wish to make use of the patent are clearly seeking compatibility, not innovation or other useful properties.
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Contents
In Europe
The patents granted by the European Patent Office are:
- EP0618550 - upheld in Germany, see below (equivalent to US5,758,352)
- ?
Upheld in Germany
- German appeal court upholds Microsoft FAT patent, The H, April 2010 (also: slashdot story)
- Federal Patent Court declares FAT patent of Microsoft null and void, The H, April 2007 (also: slashdot story)
- German original: WINDOWS - Dateiverwaltung beruht auf, patentfähiger Erfindung (English translations[?]: Google, bing translator)
- German original: Text of the appeal court decision (English translations[?]: Google, bing translator)
Related pages on ESP Wiki
- Microsoft
- Microsoft vs. TomTom - where MS forced TomTom to pay for patents, seemingly including their FAT patents
- Litigation
- Example software patents
External links
- PubPat: Microsoft FAT Patent (page out of date)
- Groklaw report on A patch to remove VFAT filename conversion from the Linux kernel,
- Microsoft's IP chief on TomTom, Linux and patents, techflash, Feb 2009
