Patents by Inventor Zhengru Yang

Zhengru Yang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Anthrapyridone sulfonic acid compounds and their preparation methods and applications
    Patent number: 8968453
    Abstract: The present invention relates to a class of compounds of general formula (I) or their salts of general formula (II): In formula (I)-(II), the substituents (A)p and (SO3H)n on the benzene ring are at the ortho, meta or para position, n is 0-2, and p is 0-3; M is selected from Li+, Na+, K+, NH4+ or organic ammonium salt N+R1R2R3R4, where R1, R2, R3, R4 are the same or different H, C1-18 alkyl groups, cyclohexyl groups, CH2CH2OH, CH(CH3)CH2OH or benzyl groups; where p>0, A stands for the same or different groups selected from: H, CN, NO2, NH2, F, Cl, Br, C1-18 alkyl group, cyclohexyl group, phenyl group, benzyl group, phenoxy group, C1-18 alkoxy group, C1-18 alkylthio group, SO2CH?CH2, SO2CH2CH2A1, NR6COR5 or NR6SO2R5.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: March 3, 2015
    Assignees: Zhuhai Ninestar Management Co., Ltd., Dalian University of Technology
    Inventors: Xiaojun Peng, Tao Liu, Jinhe Wu, Rong Zhang, Jingyue Wang, Feng Wang, Shaolei Li, Jianzhou Zhang, Zhengru Yang
  • ANTHRAPYRIDONE SULFONIC ACID COMPOUNDS AND THEIR PREPARATION METHODS AND APPLICATIONS
    Publication number: 20130327248
    Abstract: The present invention relates to a class of compounds of general formula (I) or their salts of general formula (II): In formula (I)-(II), the substituents (A)p and (SO3H)n on the benzene ring are at the ortho, meta or para position, n is 0-2, and p is 0-3; M is selected from Li+, Na+, K+, NH4+ or organic ammonium salt N+R1R2R3R4, where R1, R2, R3, R4 are the same or different H, C1-18 alkyl groups, cyclohexyl groups, CH2CH2OH, CH(CH3)CH2OH or benzyl groups; where p>0, A stands for the same or different groups selected from: H, CN, NO2, NH2, F, Cl, Br, C1-18 alkyl group, cyclohexyl group, phenyl group, benzyl group, phenoxy group, C1-18 alkoxy group, C1-18 alkylthio group, SO2CH?CH2, SO2CH2CH2A1, NR6COR5 or NR6SO2R5.
    Type: Application
    Filed: January 14, 2011
    Publication date: December 12, 2013
    Inventors: Xiaojun Peng, Tao Liu, Jinhe Wu, Rong Zhang, Jingyue Wang, Feng Wang, Shaolei Li, Jianzhou Zhang, Zhengru Yang