Another tech giant who took a diverse approach to the energy financial sector from the start, Siemens has claimed a foothold in every relevant space within the sector. Moreover, where other major companies have transitioned to focusing on the transactional side of energy financial settlements, Siemens has continued its holitic approach to building a patent portfolio in the sector. Siemens' portfolio ranges from systems to optimize demand response on grids to systems that optimize a buildings energy use. The one constant throughout Siemens' portfolio is that most of their patent documents teach of software.
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