E Ink announced it had filed a patent infringement lawsuit against Trekstor in Germany. According to E Ink, Trekstor has infringed (and still does) on two patents:

  • Electronically addressable microencapsulated ink (EP 1 231 500 B1)
  • Electrophoretic displays and materials". (EP 1 010 036)

Trekstor are distributing two e-readers in Germany called Pyrus and 4Ink. The e-paper display in those e-readers are manufactured by a company named "Guangzhou OED Technologies" based in China.

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ynvisible ink kit - create your own electrochrommic printed displaysynvisible ink kit - create your own electrochrommic printed displays