German court upholds Hanwha Q CELLS patent infringement case

June 18, 2020
Facebook
Twitter
LinkedIn
Reddit
Email
As it stands, legal proceedings that challenge the validity of the ‘215’ and ‘689’ patents are pending before the European Patent Office (EPO), while the Düsseldorf Court judgment can be appealed to the Higher Regional Court of Düsseldorf. The Australian infringement case remains outstanding. Image: ISFH

The Regional Court of Düsseldorf, Germany has confirmed Hanwha Q CELLS patent ‘689’ infringement case against two major ‘Solar Module Super League’ (SMSL’s) members, JinkoSolar and LONGi Solar, as well as PV module manufacturer REC Group. 

Hanwha Q CELLS' ‘689’ patent is very similar to the ‘215’ patent that the US ITC recently rejected after its investigation into that patent’s claimed infringement. However, Q CELLS has also confirmed it would appeal the US ITC ruling. 

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

As it stands, legal proceedings that challenge the validity of the ‘215’ and ‘689’ patents are pending before the European Patent Office (EPO), while the Düsseldorf Court judgment can be appealed to the Higher Regional Court of Düsseldorf. A separate Australian infringement case remains outstanding.

Dr. Daniel Jeong, CTO of Q CELLS, said: “We are pleased that the Regional Court of Düsseldorf has confirmed what we knew to be true all along. As we eagerly stressed when we filed the lawsuit in 2019, intellectual property laws exist to incentivize innovation and protect those innovations from being unfairly used. The protection of intellectual property rights is of foremost importance for our fast-evolving solar industry to ensure continued development of breakthrough technological innovations.”

Q CELLS had previously indicated that it could include other PV cell manufacturers in future patent infringement cases.

Jeong added, “Also, we cannot ignore the possibility that the accused companies might have applied the ‘689’ patent to their other products. Q CELLS will continue to take all necessary actions including direct litigations as well as industry dialogues, if and when our rights are violated by another party in other regions.”

Read Next

November 28, 2025
The European Patent Office (EPO) has revoked a patent for a key solar cell manufacturing process, which has been hailed as “good news” for European solar PV manufacturing.
November 27, 2025
The Solar Stewardship Initiative (SSI) and the Copper Mark have signed an agreement to pursue “responsible production and sourcing of copper across the solar energy value chain”.
November 26, 2025
Module shipment and pricing patterns in Europe bear resemblance to last year’s oversupply, which resulted in substantial losses for many industry players, writes Filip Kierzkowski
November 24, 2025
The Moroccan government has announced plans to build a 30,000MT “green polysilicon” production facility, in partnership with Moroccan renewable energy firm GPM Holding.
Premium
November 21, 2025
A modestly sized solar PV project in central Germany might have just ushered in a new era of renewables’ relationship with the grid.
November 18, 2025
TOPCon solar modules show signs of accelerated degradation, which undermines the long warranties promised by many manufacturers, according to new findings from German researchers.

Upcoming Events

Solar Media Events
December 2, 2025
Málaga, Spain
Upcoming Webinars
December 4, 2025
2pm GMT / 3pm CET
Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy