This study identifies stable coalition structures in generalized patent li- censing games with a specified payment scheme. In the model, each firm can agree to an exclusive contract with an external patent licensor for the patented technology on process innovation based on an ad-valorem (profit)...

This note revisits the impossibility result by Watanabe and Muto (2008), showing that almost all coalition structures cannot be at the core of patent licensing games. In contrast to their result, we demonstrate that if we only allow devia- tions under the exogenously fixed payment scheme and...