Five patents applied in Wuhan, Hubei Province from 2017 to 2020, covering technologies and innovations in anti-dropping technology for screw drill tools, PDC drill bits, diamond composite sheets, and rubber formulas.
collect time | 2018/01/01 - 2020/12/30 |
---|---|
collect place | Wuhan City, Hubei Province |
data size | 4.9 MiB |
data format | |
Coordinate system |
Independently Developed.
Independently Developed Simple Devices.
The patents were written by the project personnel based on their innovative research findings, and some of them have already been authorized.
# | number | name | type |
1 | 2016YFC0303300 | National key R & D plan |
# | title | file size |
---|---|---|
1 | 006-专利-一种螺杆钻具双防掉结构2017219096908.pdf | 713.5 KiB |
2 | 007-专利-一种螺杆钻具防掉杆防脱装置2017219120324.pdf | 686.5 KiB |
3 | 008-专利-一种带尖圆齿的PDC钻头2018205690825.pdf | 1.1 MiB |
4 | 009-专利-一种用于钻井工具的导热橡胶材料及其制备方法2018114739869.pdf | 1.3 MiB |
5 | 010-专利-一种抗冲击型聚晶金刚石复合片2018207938863.pdf | 1.1 MiB |
6 | _ncdc_meta_.json | 3.2 KiB |
Screw Drill Tool Anti-Dropping PDC Drill Bit Diamond Composite Sheet Rubber Formula
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