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  • Wuxi Kinglux Glass Lens Co.Ltd
  • ADD:No.286,Changjiang North Rd,New Dist,Wuxi,JS prov,China
  • Tel: 86-510-66759801
  • Fax: 86-510-84602998
  • Mobile phone: 86-18168862789
  • E-mail: ledglasslens@163.com
  • Contact person: Huimin Zhang
  • LED White Light Patent Invalidation, Everlight Won The Final Victory
    Oct 16, 2018

    The Supreme Court of the United States issued a final judgment on October 1, 2018, dismissing the request for an appeal from Nichia, and reaffirming the rights claimed by U.S. Patent No. 5,998,925 and US 7,531,960. All are invalid. The case was finalized in the third instance, and Yiguang won the final victory.

    Since April 20, 2012, Yiguang has patented two YAG white LEDs (US 5,998,925 and US 7,531,960), and filed a lawsuit against the invalidation of the patent and non-infringement in the Eastern District of Michigan. The jury passed the 12-day trial. On April 22, 2015, the rights of Japan Yahuahua were all invalidated on the grounds that the patent was not progressive and the patent was not enforceable. The judges of the Eastern District Court of Michigan reconfirmed on January 25, 2016. Jury verdict. Nichia was dissatisfied with the judgment and the representative office was removed from the appeal to the Federal Circuit Court of Appeals (CAFC). However, on March 30 this year, the CAFC Court reconfirmed that the patent was invalid and the Japanese Yahua appeal failed. Later, Nichia secondly replaced the representative office and appealed to the US Supreme Court, but the Supreme Court found that the patent was invalid and Nichia lost again.

    In this case, Lin Xianjia, deputy director of Yiguang Zhiquan, said that the most important purpose of patent rights is to protect the innovation and research results and encourage the development of the industry. However, in response to competitors’ intervention in the market through litigation, It should be unyielding, unremitting, and committed to fair competition in the market."

    The patent status of the YAG white LED for Nichia is as follows:

    Everlight has continuously invested in and expanded the ability of R&D, manufacturing and design of technology and products, deepened the layout of intellectual property, and strengthened the competitiveness of products. Currently, it has obtained the United States, China, Japan, Europe, Korea, Taiwan and other countries and The region has obtained a number of key patents and will continue to provide customers with quality services and products. In response to the false news disseminated by the company in the market, Yiguang will file the necessary international lawsuits to protect the rights of customers and shareholders.