Z:gnu-www-ja-gplv3-the-program--5ca206-The FSF sympathizes with the i/en

The FSF sympathizes with the intent of broad patent retaliation clauses in some free software licenses, since the abolition of software patents is greatly to be desired. However, we think that broad patent retaliation provisions in software licenses are unlikely to benefit the community, especially those clauses which can be triggered by patent litigation concerning other programs unrelated to the software whose license permissions are being terminated. We were very cautious in taking steps to incorporate patent retaliation into GPLv3, and the section 10, paragraph 3 clause is intended to be narrower than patent retaliation clauses in several other well-known licenses, notably the Mozilla Public License version 1.1, with respect to termination of patent licenses.