1 Additional IP Rights Grant (Patents)
2 ------------------------------------
4 "These implementations" means the copyrightable works that implement the WebM
5 codecs distributed by Google as part of the WebM Project.
7 Google hereby grants to you a perpetual, worldwide, non-exclusive, no-charge,
8 royalty-free, irrevocable (except as stated in this section) patent license to
9 make, have made, use, offer to sell, sell, import, transfer, and otherwise
10 run, modify and propagate the contents of these implementations of WebM, where
11 such license applies only to those patent claims, both currently owned by
12 Google and acquired in the future, licensable by Google that are necessarily
13 infringed by these implementations of WebM. This grant does not include claims
14 that would be infringed only as a consequence of further modification of these
15 implementations. If you or your agent or exclusive licensee institute or order
16 or agree to the institution of patent litigation or any other patent
17 enforcement activity against any entity (including a cross-claim or
18 counterclaim in a lawsuit) alleging that any of these implementations of WebM
19 or any code incorporated within any of these implementations of WebM
20 constitute direct or contributory patent infringement, or inducement of
21 patent infringement, then any patent rights granted to you under this License
22 for these implementations of WebM shall terminate as of the date such