DuPont takes SunEdison to court

DuPont on Thursday filed a lawsuit against SunEdison and its affiliate NVT in a US District Court, alleging infringement of its patented tellurium paste technology.

In its complaint, DuPont alleges that by sourcing and using PV cells and solar modules containing Samsung SDI front side metallization paste, SunEdison infringes on that technology.

"DuPont will enforce its patent rights to protect our substantial investment in innovation to improve solar energy efficiency," says Peter Brenner, global PV 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," he adds in a statement.

SunEdison had no immediate comment on the lawsuit filed in the US District Court for the District of Delaware.

The complaint also identifies Neo Solar Power of Taiwan as the cell manufacturer and Flextronics as SunEdison's contract manufacturer.

DuPont markets PV metallization paste products under the trade name Solamet.