Beijing
China
4
2026-03-19
The entities that hold a legal rights for patent applications filed by inventor Wang Ren:
Ren Wang from Beijing, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
PRESSURE-PRESERVED CORING TOOL, USE METHOD, AND RESERVOIR ANALYSIS METHOD
#2 | 2025-02-04Resin slurry plugging system suitable for fractured-vuggy formation and preparation and use thereof
#3 | 2024-02-08ANTI-SLOUGHING DRILLING FLUID AND USE THEREOF
#4 | 2024-02-08Nanographene and preparation method and use thereof and oil-based drilling fluid
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