SHANDONG ZEYUAN PETROLEUM MACHINERY CO LTD has a total of 11 patent applications. Its first patent ever was published in 2018. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, engines, pumps and turbines and packaging and shipping are NETZSCH OILFIELD PRODUCTS GMBH, PINE TREE GAS LLC and PCM.
# | Country | Total Patents | |
---|---|---|---|
#1 | China | 11 |
# | Industry | |
---|---|---|
#1 | Civil engineering | |
#2 | Engines, pumps and turbines | |
#3 | Packaging and shipping | |
#4 | Mechanical elements |
# | Technology | |
---|---|---|
#1 | Earth drilling | |
#2 | Rotary-pistons | |
#3 | Non-positive-displacement pumps | |
#4 | Gearing | |
#5 | Pumps | |
#6 | Transport or storage devices |
# | Name | Total Patents |
---|---|---|
#1 | Ding Xi | 4 |
#2 | Liu Xinyong | 3 |
#3 | Zheng Yawen | 2 |
#4 | Zhang Xibao | 2 |
#5 | Dang Ningjun | 2 |
#6 | Sui Zhongxun | 2 |
#7 | Yu Hui | 2 |
#8 | Lyu Abo | 2 |
#9 | Sun Sifan | 1 |
#10 | Zhu Yubo | 1 |
Publication | Filing date | Title |
---|---|---|
CN111425154A | Pipe rod conveyor | |
CN110306939A | One kind can the road Duan Chaimao machine | |
CN110306942A | A kind of cat road machine | |
CN109869119A | A kind of extracting device of oil | |
CN109592395A | Sucker rod conveyer | |
CN109555820A | A kind of retarder for submersible screw pumping system | |
CN109296344A | Submersible screw pump retarder protector | |
CN109519132A | A kind of Drill-pipe conveyed machine and board migration device | |
CN109236642A | Metal screw pump stator moulding process | |
CN109253107A | A kind of mechanical seal for submersible electric pump motor protecter | |
CN109595145A | Latent oil reciprocator and its plunger pump system |