Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Downhole hydraulic directional control valve used by hydraulic power pumps and working method thereof

Downhole hydraulic directional control valve used by hydraulic power pumps and working method thereof

US Patent 12168912 · Granted Dec 17, 2024

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Smart cat litter box2025
Enhanced graphene structure based on weak coupling, graphene film, and photoelec2025
Artificial intelligence assisted production advisory system and method2025
Negative pressure wave monitoring based leak detection method of multipath pipel2025
Vector dataset index parameter determination2025
Vector dataset index parameter determination2025
Apparatus, method and storage medium for database query2025
Miniature graphene aerogel device and preparation method thereof2025
Test pencil2025
Vector dataset index parameter determination2025
Power supply circuit, driving method thereof, printed circuit board, display mod2025
Multi-stage foam sound-absorbing black body material and preparation method ther2025