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DuPont Files Patent Infringement Lawsuit against SunEdison

WILMINGTON, Del., Aug. 21, 2014 /PRNewswire/ -- Today DuPont filed a patent infringement lawsuit against SunEdison and its affiliate NVT LLC in the U.S. District Court for the District of Delaware.  In its complaint, DuPont alleges that by sourcing and using photovoltaic cells and solar modules containing Samsung SDI Co., Ltd. (into which the former Cheil Industries Inc. merged) front side metallization paste, SunEdison infringes DuPont's patented tellurium paste technology.  The complaint also identifies Neo Solar Power of Taiwan as the cell manufacturer and Flextronics as SunEdison's contract manufacturer.

"DuPont will enforce its patent rights to protect our substantial investment in innovation to improve solar energy efficiency," said Peter Brenner, global photovoltaic business marketing manager, Microcircuit Materials, DuPont Electronics & Communications.  "Installers and module makers like SunEdison are responsible for ensuring that their products do not use infringing cells or pastes.  Our patented tellurium technology is available only from DuPont; no other photovoltaic paste manufacturer has a license to use our patented technology."

As a leading supplier of materials to the photovoltaic industry, DuPont has helped improve the power output, reliable lifetime and cost-competitiveness of solar energy through innovations such as Solamet® photovoltaic metallization paste products.  DuPont has been able to deliver these innovations to the solar industry as a result of investing heavily in research and development.

DuPont™ Solamet® photovoltaic metallization pastes are part of a broad and growing portfolio of products represented by DuPont Photovoltaic Solutions (DPVS), which connects science and technology from across the company on a global scale to help support the dramatic growth in the photovoltaic industry.  To learn more, please visit

DuPont (NYSE: DD) has been bringing world-class science and engineering to the global marketplace in the form of innovative products, materials, and services since 1802.  The company believes that by collaborating with customers, governments, NGOs, and thought leaders we can help find solutions to such global challenges as providing enough healthy food for people everywhere, decreasing dependence on fossil fuels, and protecting life and the environment.  For additional information about DuPont and its commitment to inclusive innovation, please visit

The DuPont Oval Logo, DuPont™ and Solamet® are registered trademarks or trademarks of DuPont or its affiliates.


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