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Home » Hacking News » Microsoft sued over Excel and Longhorn

Microsoft sued over Excel and Longhorn

by Nikola Strahija on May 18th, 2005 Carlos Armando Amado, a Guatemalan inventor, claims Microsoft is illegally using his software to transfer information between MS spreadsheet products Excel and Access.


Amando filed a patent in 1990 for software which lets users move data between Excel to Access via a spreadsheet. He allegedly tried to sell it to Microsoft two years later, but Microsoft start using his technology in Access releases from 1995 to 2002 without paying a dime for it.

Microsoft denies this saying they started working on the technology in 1989, and developed their own software.

The suit does not claim specific damages but lawyers told Reuters they would be asking for about $2 for every copy of the software sold, which equates to around $500m. The case is being heard in the US District Court of Central California.

Microsoft is also facing patent claims over Longhorn, the next version of Windows, from networking company Alacritech. It is also being sued by Forgent Networks which claims the software giant stole its JPEG compression patents.


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