LIU ZHENYI has a total of 12 patent applications. Its first patent ever was published in 1993. It filed its patents most often in United States and China. Its main competitors in its focus markets materials and metallurgy, chemical engineering and environmental technology are BEIJING SJ ENVIRONMENTAL PROT & NEW MATERIAL CO LTD, DENOX ADVANCED MAT CO LTD and ENGELHARD PROCESS CHEM GMBH.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 7 | |
#2 | China | 5 |
# | Name | Total Patents |
---|---|---|
#1 | Liu Zhenyi | 11 |
#2 | Lin Ke | 3 |
#3 | Zhao Yao | 2 |
#4 | Guo Chen | 2 |
#5 | Li Mingzhi | 2 |
#6 | Fan Tao | 2 |
#7 | Liu Fengren | 2 |
#8 | Guo Ruijun | 2 |
#9 | Wang Xiangsheng | 2 |
#10 | Yu Yongsheng | 1 |
Publication | Filing date | Title |
---|---|---|
CN112032461A | Hydrogel plugging technology-based method for quickly and locally replacing oil pipeline | |
CN111978489A | Hydrogel for temporarily plugging oil pipeline and preparation method thereof | |
CN109171218A | A kind of high school student's eye-protective desk | |
CN103591015A | Modified ball valve | |
US2010210449A1 | Composition of amorphous iron oxide hydroxide, desulfurizer comprising the same, and methods for preparing and regenerating the desulfurizer | |
CN1096893A | The method of go manual memory apparatus and execution go note spectrum |