Hanwha Q CELLS makes patent complaints against JinkoSolar, REC and LONGi

Facebook
Twitter
LinkedIn
Reddit
Email
Source: Hanwha Q CELLS.

Updated: Hanwha Q CELLS has filed patent infringement complaints against JinkoSolar, REC Group and LONGi Solar.

A complaint filed with the Regional Court of Düsseldorf against REC and JinkoSolar is centred around the passivation technology used for its Q.ANTUM cells. The complaint seeks an order to stop REC and JinkoSolar from selling products in Germany that allegedly infringe on the patent.

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

Complaints against the pair and LONGi Solar have also been filed with the US International Trade Commission and the US District Court in Delaware.

“Intellectual property laws exist to incentivize innovation and protect innovations from being unfairly used, and we will vigorously defend our technology from infringement,” said Hee Cheul (Charles) Kim, CEO, Hanwha Q CELLS & Advanced Materials Corp. 

Updated

JinkoSolar responded to the claims on 6 March, 2019. 

LONGi Solar and REC Group have separately responded to the patent infringement cases on 7 March, 2019.

On 13 March, 2019 – Hanwha Q CELLS Australia together with Hanwha Q CELLS & Advanced Materials Corp filed patent infringement complaints with the Federal Court of Australia against JinkoSolar and LONGi Solar of Australian patent no. 20083232025. 

The Australian patent [025] is directly related to US patent [215] that kick-started infringement cases in the US and Germany on 5 March, 2019.

Hee Cheul (Charles) Kim, Chief Executive Officer of Hanwha Q CELLS & Advanced Materials Corp said, “Our high-quality photovoltaic products have established us as an industry leader, and we are proud of our legacy of innovation. The products supplied by these two companies are using technology that we believe is protected by our Australian patent and we have taken these actions both to protect our property rights and to give the market confidence that research and development initiatives to develop future technologies can continue. We are not prepared to tolerate the unauthorised distribution in Australia of products that incorporate our patented technology.”

The patent claims asserted by Hanwha Q CELLS are not restricted to any particular method of manufacture, such as atomic layer deposition (ALD) or plasma-enhanced chemical deposition (PECVD). Instead, the asserted claims of Australian patent no. 20083232025 (and its equivalents in the U.S. and Germany) are directed to a solar cell structure with a first dielectric layer including aluminum oxide and a second dielectric layer that contains hydrogen. 

2 February 2027
London, UK
Returning in 2027 for its 14th edition, Solar & Storage Finance Europe will bring together the brightest minds representing funds, banks, developers, utilities, government and industry across Europe and the UK on a programme that is solutions-focused from top to tail. The event is designed to enable leaders at the forefront of solar and storage investment and deployment in Europe to scale, learn and land themselves industry defining partnerships.

Read Next

October 26, 2026
Q3 2026 was a pivotal period for the global inverter market, marked by capacity expansion in the US and a landmark regulatory shift.
October 26, 2026
Aiko Solar has revealed a return to profitability in the third quarter of this year and released details of a major technology upgrade to its PERC production line.
October 23, 2026
New Jersey representative Rob Menendez has introduced the Socket Full of Sunshine Act, the first federal-level bill to support plug-in solar.
October 23, 2026
Deriva Energy has announced the close of approximately US$540 million in financing for its 350MW Sullivan County Power Project.
October 22, 2026
NextEra Energy recorded a 9.7% increase in its net earnings in Q3 2026, with earnings up 9.5% in the nine months to date this year.
October 22, 2026
Kendall Sustainable Infrastructure (KSI) has started operating three community solar projects totalling 15.8MWdc across New York and Oregon.

Upcoming Events

Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK
Solar Media Events
April 20, 2027
Istanbul, Türkiye