1*1c12ee1eSDan WillemsenAdditional IP Rights Grant (Patents) 2*1c12ee1eSDan Willemsen 3*1c12ee1eSDan Willemsen"This implementation" means the copyrightable works distributed by 4*1c12ee1eSDan WillemsenGoogle as part of the Go project. 5*1c12ee1eSDan Willemsen 6*1c12ee1eSDan WillemsenGoogle hereby grants to You a perpetual, worldwide, non-exclusive, 7*1c12ee1eSDan Willemsenno-charge, royalty-free, irrevocable (except as stated in this section) 8*1c12ee1eSDan Willemsenpatent license to make, have made, use, offer to sell, sell, import, 9*1c12ee1eSDan Willemsentransfer and otherwise run, modify and propagate the contents of this 10*1c12ee1eSDan Willemsenimplementation of Go, where such license applies only to those patent 11*1c12ee1eSDan Willemsenclaims, both currently owned or controlled by Google and acquired in 12*1c12ee1eSDan Willemsenthe future, licensable by Google that are necessarily infringed by this 13*1c12ee1eSDan Willemsenimplementation of Go. This grant does not include claims that would be 14*1c12ee1eSDan Willemseninfringed only as a consequence of further modification of this 15*1c12ee1eSDan Willemsenimplementation. If you or your agent or exclusive licensee institute or 16*1c12ee1eSDan Willemsenorder or agree to the institution of patent litigation against any 17*1c12ee1eSDan Willemsenentity (including a cross-claim or counterclaim in a lawsuit) alleging 18*1c12ee1eSDan Willemsenthat this implementation of Go or any code incorporated within this 19*1c12ee1eSDan Willemsenimplementation of Go constitutes direct or contributory patent 20*1c12ee1eSDan Willemseninfringement, or inducement of patent infringement, then any patent 21*1c12ee1eSDan Willemsenrights granted to you under this License for this implementation of Go 22*1c12ee1eSDan Willemsenshall terminate as of the date such litigation is filed. 23