一个是对权利的限制一个是对权利的扩张,禁止反悔与等同原则为何会狭路相逢呢?当因修改权利要求而引发关于专利保护范围的争议,当等同原则遇上禁止反悔原则,我们应该何去何从?本文试以一个关于组合物权利的典型案例为切入点,浅析禁止反悔原则与等同原则在实践运用中的地位。 One is the restriction of rights. One is the expansion of rights. The principle of prohibition of estoppel and equivalence will come to terms with each other. When disputes over the scope of patent protection arise due to the modification of rights claims, where should we go when the principle of equality repels itself? This article attempts to use a typical case of composition rights as a starting point, and analyzes the status of the principle of prohibition of regret and the principle of equivalence in practice.