We examine the problem faced by a company that wishes to purchase patents in the hands of two different patent owners. Complementarity of these patents in the production process of the company is a prime effciency reason for them being owned (or licenced) by the company. We show that this very same complementarity can lead to patent owners behaving strategically in bargaining, and delaying their sale to the company. When the company is highly leveraged, such
ineffcient delay is limited. Comparative statics results are also obtained.