Restrictive Patent Grant License (Score 5, Informative)

The restrictive patent grant license mentioned was probably the submission from Intel, which was a version of the BSD license with patent language added: From this e-mail:

Intel modified the BSD license in the following ways:

1. Intel made OPTIONAL the inclusion of a copyright notice (i.e., "Redistributions of source code of the Software may retain the above copyright notice, this list of conditions and the following disclaimer").
2. Intel added certain definitions derived from the patent license in the Common Public License, and added a license grant under certain Intel patents to distribute Intel software contributions, alone or as incorporated in any operating system licensed under the GPL (version 2.0 or later).