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The invention patent right of Juyou is also invalid, and the PBAT patent dispute is endless?

 Last Update: 2022-10-08
 Source: Internet
 Author: User

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On May 5th, Changhong Hi-Tech issued an announcement on the progress of the lawsuit.

Litigation Basics

On December 23, 2021, the company disclosed the "Announcement on Litigation Involved" (No.

Litigation progress

On October 21, 2021, Zhongke Qicheng has submitted a patent invalidation declaration to the State Intellectual Property Office for the patent right of the plaintiff Shanghai Juyou Chemical Co.

After examination, the State Intellectual Property Office recently issued the "Invalidation Request Examination Decision" (No.

Timeline of Zhongke Departure and Juyou Chemical Patent Litigation

April 2022

On April 25, 2022, the State Intellectual Property Office made a decision to declare 201110401503.

January 2022

The State Intellectual Property Office made a decision on January 29, 2022 to declare the invention patent rights of 01144134.

December 2021

Shanghai Juyou Chemical filed a lawsuit with the Higher People's Court of Jiangsu Province, claiming that four companies, namely Zhongke Qicheng, Yangzhou Huitong, Changhong Polymer and Changhong Bio, infringed on its legally owned patent 201110401503.

May 2021

Juyou Chemical released the "Notice to Clients".

April 2021

On April 22, Zhongke Qicheng took the lead in suing Shanghai Juyou (the first defendant) and Shandong Ruifeng Polymer (the second defendant) to Hainan Free Trade on the basis of disputes over patent rights and proprietary technology secrets.

January 2021

In January 2021, 2 biodegradable material patents of the Chinese Academy of Sciences completed the applicant change, from the Institute of Physical and Chemical Technology of the Chinese Academy of Sciences to the Chinese Academy of Sciences Qicheng New Material Technology (Hainan) Co.

"Method for preparing aliphatic dibasic acid glycol esters" (Patent No.

November 2020

Changhong Hi-Tech issued an announcement and signed the "Percentage of 600,000 tons of PBAT Resin Polymerization Technology Licensing Contract" with Zhongke Kaicheng

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