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SHANDONG INSPUR HUAGUANG OPTOELECTRONICS CO LTD

Overview
  • Total Patents
    243
  • GoodIP Patent Rank
    7,029
  • Filing trend
    ⇩ 5.0%
About

SHANDONG INSPUR HUAGUANG OPTOELECTRONICS CO LTD has a total of 243 patent applications. It decreased the IP activity by 5.0%. Its first patent ever was published in 2011. It filed its patents most often in China. Its main competitors in its focus markets semiconductors, machine tools and environmental technology are ENRAYTEK OPTOELECTRONICS CO, EPILIGHT TECHNOLOGY CO LTD and HC SEMITEK ZHEJIANG CO LTD.

Patent filings in countries

World map showing SHANDONG INSPUR HUAGUANG OPTOELECTRONICS CO LTDs patent filings in countries
# Country Total Patents
#1 China 243

Patent filings per year

Chart showing SHANDONG INSPUR HUAGUANG OPTOELECTRONICS CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Xu Xiangang 83
#2 Yan Baohua 79
#3 Wang Chengxin 75
#4 Liu Qi 54
#5 Xiao Chengfeng 48
#6 Peng Lu 43
#7 Xia Wei 35
#8 Li Xiaoming 33
#9 Xu Xian Gang 32
#10 Xu Xiaoqiang 30

Latest patents

Publication Filing date Title
CN111554570A Growth method of GaN thick film
CN112259644A Method for testing parameters of LED chip
CN112242458A Method for improving cutting quality of reversed polarity AlGaInP LED chip
CN112151642A Cutting method for reducing cutting loss of LED chip
CN112133796A Method for improving surface cleanliness of LED tube core
CN110335923A A kind of multi-quantum pit structure, LED epitaxial wafer and preparation method thereof
CN111987205A GaAs-based LED lamp bead packaging method
CN111987192A Method for packaging quaternary LED chip
CN111987201A Preparation method of GaAs-based light emitting diode chip
CN111900081A Cutting method of silicon-based LED chip
CN111900080A Cutting method of LED chip
CN111725365A GaAs-based multi-junction yellow-green light LED and preparation method thereof
CN111725371A LED epitaxial bottom layer structure and growth method thereof
CN111725059A Segmentation method for improving appearance of silicon-based LED chip
CN111640827A Cutting method of GaAs-based LED chip
CN111484908A Photoetching plate cleaning agent and use method thereof
CN111487844A Photoetching plate surface damage repairing solution and application thereof
CN111490136A Reversed polarity AlGaInP red light L ED tube core structure and manufacturing method thereof
CN111490133A Growth method for coarsening surface of GaN-based L ED blue-green light epitaxial wafer
CN111487845A Method for manufacturing L ED die electrode mask pattern capable of being directly stripped