Protecting Early Innovators: Should Second-Generation Products be Patentable?
分析基础技术专利持有人能否从第二代产品获利，认为第二代产品无需专利保护，且不授予专利能让基础专利持有人获得更大利润。
Incentives to develop basic technologies are greater if the patentholder profits from applications or other second-generation products. Assuming that such products infringe the basic patent and that there is not much delay between the innovations, I argue that (i) patents on second-generation products are not necessary to encourage their development and (ii) the patentholder of the basic technology collects a larger share of the profit if applications or other second generation products are not patentable.