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| 1 Additional IP Rights Grant (Patents) | |
| 2 | |
| 3 "This implementation" means the copyrightable works distributed by | |
| 4 Google as part of the Polymer project. | |
| 5 | |
| 6 Google hereby grants to You a perpetual, worldwide, non-exclusive, | |
| 7 no-charge, royalty-free, irrevocable (except as stated in this section) | |
| 8 patent license to make, have made, use, offer to sell, sell, import, | |
| 9 transfer and otherwise run, modify and propagate the contents of this | |
| 10 implementation of Polymer, where such license applies only to those | |
| 11 patent claims, both currently owned or controlled by Google and acquired | |
| 12 in the future, licensable by Google that are necessarily infringed by | |
| 13 this implementation of Polymer. This grant does not include claims | |
| 14 that would be infringed only as a consequence of further modification of | |
| 15 this implementation. If you or your agent or exclusive licensee | |
| 16 institute or order or agree to the institution of patent litigation | |
| 17 against any entity (including a cross-claim or counterclaim in a | |
| 18 lawsuit) alleging that this implementation of Polymer or any code | |
| 19 incorporated within this implementation of Polymer constitutes | |
| 20 direct or contributory patent infringement, or inducement of patent | |
| 21 infringement, then any patent rights granted to you under this License | |
| 22 for this implementation of Polymer shall terminate as of the date | |
| 23 such litigation is filed. | |
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