Learn more

WANHUA CHEMICAL NINGBO RONGWEI POLYURETHANE CO LTD

Overview
  • Total Patents
    18
  • GoodIP Patent Rank
    95,141
  • Filing trend
    ⇧ 400.0%
About

WANHUA CHEMICAL NINGBO RONGWEI POLYURETHANE CO LTD has a total of 18 patent applications. It increased the IP activity by 400.0%. Its first patent ever was published in 2015. It filed its patents most often in China, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets macromolecular chemistry and polymers, machines and mechanical elements are DIRECTOR GENERAL DEFENCE RES & DEV ORGANIZATION DRDO, FRICKE MARC and SHANGHAI DONGDA POLYURETHANE CO LTD.

Patent filings in countries

World map showing WANHUA CHEMICAL NINGBO RONGWEI POLYURETHANE CO LTDs patent filings in countries

Patent filings per year

Chart showing WANHUA CHEMICAL NINGBO RONGWEI POLYURETHANE CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhu Xialin 13
#2 Ye Jun 9
#3 Wang Shiwen 6
#4 Zhong Rensheng 6
#5 Chen Wenjing 6
#6 Chen Jing 5
#7 Wang Junfeng 3
#8 Zheng Liqian 3
#9 Xi Qiang 3
#10 Wang Lin 2

Latest patents

Publication Filing date Title
CN112225890A Amino polyether polyol for low-boiling-point low-density quick-release system, preparation method thereof, polyurethane rigid foam prepared from amino polyether polyol and preparation method thereof
CN112210072A 2, 3-diphenylsuccinic acid polyester polyol, low-conductivity and high-flame-retardant polyurethane foam and preparation method thereof
CN111647191A Low-conductivity foaming agent composition, polyurethane rigid foam and preparation method thereof
CN110818869A Composite material for preparing high-density open-cell hard foam, polyurethane foam and application
CN111019113A Aminopolyether polyol for pure LBA system, preparation method thereof and polyurethane rigid foam prepared by using aminopolyether polyol
CN110305308A A kind of polyether polyol and preparation method thereof, a kind of hard polyurethane foam
CN110078890A A kind of hard polyurethane foam and preparation method thereof
CN110016132A Carbon nano-fiber polyether polyol emulsifier and its preparation method and application
CN109970962A Gluconic acid originates polyesterether polyols and its application in hard polyurethane foam
CN111363134A H12MDA polyether ester polyol, preparation method, application and polyurethane rigid foam
CN109593175A A kind of half aperture polyurethane hard bubble composite material of complete water type and preparation method thereof
CN109485843A A kind of amino-polyether polyalcohol and preparation method thereof, a kind of hard polyurethane foam and preparation method thereof
CN108409956A 3,4- diamino furans prick polyether polyol and preparation method and hard polyurethane foam prepared therefrom and preparation method
CN107868218A A kind of pipe insulation polyurethane hard bubble composite material and preparation method thereof
CN104628979A B1-grade flame-retardant polyurethane rigid foam used for continuous line production as well as preparation method and usage thereof
CN104672420A High-strength polyurethane rigid foam as well as preparation method and application thereof
WO2016115751A1 Composition for polyurethane foaming, polyurethane foam and use thereof