Beijing
China
8
2025-10-09
The entities that hold a legal rights for patent applications filed by inventor Yu Haijun:
Haijun Yu from Beijing, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
Preparation And Application Of A Polyrotaxane-Based Polymer Electrolyte
#2 | 2025-10-09Preparation And Application Of A Polymer-based Composite Solid Electrolyte With High Ionic Conductivity
#3 | 2021-07-22Lithium-rich layered oxide material with phase structure gradient and its preparation method
#4 | 2021-06-24Acousto-optic Q switch, resonant cavity and pulse laser device for improving laser device power
#5 | 2021-06-24Laser cleaning method and device for improving uniformity of laser cleaning surface
#6 | 2019-10-03Cryostat
#7 | 2016-09-15Continuous operable gas purification device in an ion mobility spectrometer
#8 | 2014-11-27Apparatus and method for detecting hazardous substance on a surface of an object
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