SIF1 Specification license

Vsevolod Mokrushin (the "Author") 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, and otherwise transfer implementations of this specification where such license applies only to those patent claims, both currently owned by Author and acquired in the future, licensable by Author that are necessarily infringed by implementation of this specification. 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 any implementation of this specification constitutes direct or contributory patent infringement, or inducement of patent infringement, then any rights granted to You under the License for this specification shall terminate as of the date such litigation is filed.