Concluded in the paper is that patent development timing, the initial investment, the probability of competition entry are the most important factors that influence each phase of patent development.
指出专利开发的时机选择，开发的初期投入，竞争对手进入的概率等是影响专利开发各阶段的最主要因素。
2
It considers in the same model, besides the key factors for investment decisions such as uncertainty, flexibility, and timing, the effect of competition with the possible strategies for each firm.