PATENTS

Additional IP Rights Grant (Patents)

"This implementation" means the copyrightable works distributed by
Google as part of the WebRTC project.

Google hereby grants to you a perpetual, worldwide, non-exclusive,
no-charge, irrevocable (except as stated in this section) patent
license to make, have made, use, offer to sell, sell, import,
transfer, and otherwise run, modify and propagate the contents of this
implementation of the VoiceEngine Framework and the VideoEngine
Framework included in the WebRTC package, where such license applies
only to those patent claims, both currently owned by Google and
acquired in the future, licensable by Google that are necessarily
infringed by this implementation of the VoiceEngine Framework and the
VideoEngine Framework included in the WebRTC package. This grant does
not include claims that would be infringed only as a consequence of
further modification of this implementation. If you or your agent or
exclusive licensee institute or order or agree to the institution of
patent litigation against any entity (including a cross-claim or
counterclaim in a lawsuit) alleging that this implementation of the
VoiceEngine Framework and the VideoEngine Framework included in the
WebRTC package or any code incorporated within this implementation of
the media components included in the WebRTC package constitutes direct
or contributory patent infringement, or inducement of patent
infringement, then any patent rights granted to you under this License
for this implementation of the VoiceEngine Framework and the
VideoEngine Framework included in the WebRTC package shall terminate
as of the date such litigation is filed.