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LI QINGENG

Overview
  • Total Patents
    15
  • GoodIP Patent Rank
    176,468
  • Filing trend
    ⇩ 100.0%
About

LI QINGENG has a total of 15 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 1995. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and United States. Its main competitors in its focus markets organic fine chemistry, pharmaceuticals and environmental technology are CHONGQING WEIPENG PHARMACEUTICAL CO LTD, DIPHARMA SPA and HAJICEK JOSEF.

Patent filings in countries

World map showing LI QINGENGs patent filings in countries

Patent filings per year

Chart showing LI QINGENGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Qingeng 14
#2 Wang Tao 10
#3 Zeng Lingguo 4
#4 Xu Xiangqing 4
#5 Wu Tong 4
#6 Chen Gang 4
#7 Wang Yuanzhong 4
#8 Mao Wei 4
#9 Xie Jianyong 3
#10 Zhang Guisheng 3

Latest patents

Publication Filing date Title
CN106029631A Class of carboxylic acid derivatives and use thereof in preparation of prodrugs
CN102885774A Prasugrel composition and preparation method thereof
CN102850402A Acyclic nucleoside cyclic phosphonate derivative, its preparation and use
CN102190622A Water-soluble derivatives of edaravone, preparation method and application thereof
CN1454898A Method of preparing disodium methyl nitrozole phosphate
CN1454602A High water-soluble povidone-iodine cream
CN1192358A Povidone iodine membrane agent
CN1183274A Bismuth lactate complexes, compound preparations composed of antihistaminic and preparation thereof