| Additional IP Rights Grant (Patents) |
| |
| "This implementation" means the copyrightable works distributed by |
| Google as part of the Go project. |
| |
| Google hereby grants to You a perpetual, worldwide, non-exclusive, |
| no-charge, royalty-free, 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 Go, where such license applies only to those patent |
| claims, both currently owned or controlled by Google and acquired in |
| the future, licensable by Google that are necessarily infringed by this |
| implementation of Go. 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 Go or any code incorporated within this |
| implementation of Go 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 Go |
| shall terminate as of the date such litigation is filed. |
