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invalidation request issued

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fees.In the industry's view,composite floor patio Dulwich is not original to obtain these patents, and even some of them are not very bright, so long-term criticism of Dulwich's patent rights, and even referred to its "patent fraud."Ye Changhai, the person in charge of the original Baofeng floor, who has experienced the Dulwich rights lawsuit,good pvc fence plans treated said that many of Dulwich’s patents were copied in professional books in the industry, and there is no originality.Gao Zhihua,

an old expert with the reputation of “the pioneer in the flooring industry”, italy wpc flooring out door decksaid from a professional point of view that Dulwich Floor often uses the technology known in the industry to apply for patents. “There is a saying in the industry that the carpenter is not chamfered and the craft is not learned.cover wood deck with vinylThe technology of chamfering is something that all carpenters know, but it is patented by Dulwich with the corresponding technology. ”He also said

that Dulwich often applied for different patents through different technical terms, and he could not afford to scrutinize.clading tiles designs with price in keralaIn addition to the doubts about the patent source, Dulwich’s method of collecting patent fees in the flooring industry for many years has also been less popular in the industry.Yan Peijin,eps plastic lumber floor president of the Ou Dian floor, who once had a courtroom with Dulwich, believes that Dulwich always asks for money from various

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