There are various patterns of technological alliances from R&D enterprises to associations formed with the main purpose of sub-contracted manufacture or supply-chain management. The purpose here is to consider those forms of association devoted to the core of technology and to expand upon concepts touched upon in royalties. There are various patterns of technological alliances from R&D enterprises to associations formed with the main purpose of sub-contracted manufacture or supply-chain management. The purpose here is to consider those forms of association devoted to the core of technology and to expand upon concepts touched upon in royalties.