Fig. 3. Illustrative sketch of the relationship between the sectoral configuration and the knowledge development and diffusion function in LIB technology. Different sectors are distinguished via SIC codes. We aggregated some SIC codes to increase reader friendliness.
We assigned the patents to the technology architecture categories and sectors as shown in Fig. 3. The wide spread of SIC codes across different fields—five first-digit differences—indicates how different the LIB TIS’s sectors are. Furthermore, Fig. 3 illustrates how the technology architecture categories relate to the sectors’production activities (shown in green).