We develop a theoretical economic model that establishes the link between fragmented patenting systems in an industry already characterized as a monopoly resulting in continuous/steady monopolistic market structure. We demonstrated that preemptive patenting strategy, by using secondary patenting scheme, may lead to an increase in the number of patents without changing actual number of products on the market. Moreover, when such a strategy is employed by a monopoly, it only serves to sustain and further monopolistic and therefore socially suboptimal market structure. Institutional/legal framework must exist to promote this kind of socially suboptimal behavior and resulting outcomes.

中文翻译：

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抢先申请专利、二级专利和垄断的持续存在

我们开发了一种理论经济模型，该模型在已经被定性为垄断的行业中建立分散的专利制度之间的联系，从而形成连续/稳定的垄断市场结构。我们证明，通过使用二级专利计划的抢先专利策略可以在不改变市场上实际产品数量的情况下导致专利数量的增加。此外，当垄断者采用这种策略时，它只会维持和进一步垄断，从而导致社会次优的市场结构。必须存在制度/法律框架来促进这种社会次优行为和由此产生的结果。