UPDATED. 2024-07-12 07:53 (금)
Charm Engineering wins inkjet repair patent lawsuit against Enjet 
Charm Engineering wins inkjet repair patent lawsuit against Enjet 
  • Gijong Lee
  • 승인 2023.06.07 17:57
  • 댓글 0
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Image: Charm Engineering
Image: Charm Engineering

Display equipment maker Charm Engineering has won its patent lawsuit against Enjet after three years of legal back and forths.

Earlier this month, the Supreme Court denied the two appeals made by Enjet against Charm Engineering.

Enjet had filed appeals against two Patent Court decisions that invalidated its patent as well as denied the right to modify it.

Enjet had first claimed that Charm Engineering infringed on its patent related to using electrostatic force to print 3D surfaces, or patent number 10-2012-0053734.

The patent is used to repair defective patterns arising from the use of inkjet systems, which are used in the manufacture of display panels.

Charm Engineering had claimed it used its own patents to make the display production equipment that allegedly use Enjet’s patent.

Both Charm Engineering and Enjet supply their production equipment to Samsung Display and LG Display, which wanted the issue resolved.

Enjet initially sent warnings to Charm Engineering in early 2000 but Charm Engineering retaliated by filing a lawsuit to the Patent Court asking to invalidate Enjet’s patent in question.

The Patent Court initially sided with Enjet but after appeals from Charm Engineering reversed its decision in favor of the latter in January this year.


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