Intellectual Property
The Sender ID proposal was the subject of controversy regarding intellectual property licensing issues: Microsoft holds patents on key parts of Sender ID and used to license those patents under terms that were not compatible with the GNU General Public License and which were considered problematic for free software implementations in general. On October 23, 2006, Microsoft placed those patents under the Open Specification Promise, which is compatible with free and open source licenses, but not with the most recent version of the GPL license, version 3.x.
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Famous quotes containing the words intellectual and/or property:
“The fact that man knows right from wrong proves his intellectual superiority to the other creatures; but the fact that he can do wrong proves his moral inferiority to any creatures that cannot.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)
“The English language is nobody’s special property. It is the property of the imagination: it is the property of the language itself.”
—Derek Walcott (b. 1930)