Ausra, United Technologies, Yeda R&D Among Leaders in Thermal Energy Storage Patent Landscape for Grid-Scale Concentrating Solar Thermal (CST)

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IP Checkups announces the release of its Sector Patent Landscape report entitled, Grid-Scale Concentrated Solar Thermal: Thermal Energy Storage Technologies. The report highlights key players, patents and filing trends in the emerging thermal energy storage patent landscape.

IP Checkups' Sector Patent Landscape report, Grid-Scale Concentrated Solar Thermal: Thermal Energy Storage Technologies identifies key patent holders for important CST thermal energy storage solutions including compressed steam, phase-change materials and molten salt. The report concludes that in order to protect new grid-scale thermal energy storage technologies, companies must carefully navigate a handful of patents with broad claims as well as a significant body of non-patent literature.

According to the report, United Technologies (UTX), together with subsidiaries Hamilton-Sundstrand and Pratt & Whitney Rocketdyne, have obtained the broadest patent protection for molten salt thermal energy storage. SolarReserve is poised to take advantage of UTX's portfolio of patents through an exclusive licensing deal. In addition, a slew of up and coming companies and R&D labs including, Abengoa, Ausra, Bell Independent Power, Larkden Pty. Ltd., MeV Technology, SkyFuel, Solar Millennium, and Yeda Research & Development have aggressively filed patents on a variety of thermal storage technologies that will shape the patent landscape going forward.

Thermal energy storage is a key component to the long-term acceptance and success of grid-scale Concentrating Solar Power technologies (parabolic trough, linear fresnel, power tower, and dish-engine) by providing a means to remove the intermittent nature of the sun's energy and increase plant utilization. It is crucial for companies and investors to understand what technologies the key players in this space are protecting.

This 100 page in-depth Sector Patent Landscape Analysis identifies the fundamental patents, key players and emerging trends relating to patent coverage of various thermal energy storage technologies for CST applications. In all, 221 patent documents from the US, EP, JP and WO patent offices were uncovered that comprise the patent landscape.

The report breaks down the documents by filing date, geography, inventor, assignee and technology to identify key players, trends and fundamental patents in the field. In addition the report analyzes the level of patent protection including claims assessments, technology breadth and licensing agreements.

To learn more or purchase the report, visit

IP Checkups is a boutique Patent Analytics firm based in the Bay Area. The firm provides clients with customized competitive patent landscape analysis, technology sector overviews, and company patent portfolio profiles. IP Checkups' patent analysts combine traditional qualitative analysis with sophisticated software tools to dig deep into competitors' patent portfolios to understand how companies are positioned relative to each other in particular technology areas. Services include custom and off-the-shelf patent landscape overviews, company portfolio evaluations, patent monitoring and alerting services among others.

For more information contact Matthew Rappaport at (510) 981-1030 or visit


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Matthew Rappaport
IP Checkups, Inc.
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