同学你好，该知识点来自沪江网校《2022考研蜕变计划定制班 政英+专业课、公共课1对1+特级暑期集训营【现金奖励班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

你这边的句子不完整哦，应该是A granted patent is the result of a bargain struck between an inventor and the state, by which the inventor gets a limited period of monopoly and publishes full details of his invention to the public after that period terminates.
那这边的主干就是A granted patent is the result of a bargain.中心词就是bargain，struck between an inventor and the state指出bargain的双方身份，而后面的by which引导的从句具体说明了bargain的内容。
所以主干句子的翻译就是：批准了的专利是讨价还价的结果