Inventor

PERRY CARL ALLISON

US19 patents

⚠️ This page may combine multiple inventors who share the name “PERRY CARL ALLISON”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PERRY CARL ALLISON

APS TECHNOLOGY INC

System and method for damping vibration in a drill string

System and method for damping vibration in a drill string

System and method for damping vibration in a drill string

System and method for damping vibration in a drill string

Power-generating device for use in drilling operations

Electrical connections for harsh conditions

Latching system for maintaining position of component within a downhole drill string section

APS TECH INC

Downhole drilling tools and connection system for same

Mud-pulse telemetry system including a pulser for transmitting information along a drill string

Rotary steerable tool with proportional control valve

Downhole tool with multiple welded section

Pressure locking device for downhole tools

High pressure seal assembly for a moveable shaft

Acoustic logging tool

WASSELL MARK ELLSWORTH

Apparatus for measuring bending on a drill bit operating in a well

System and method for damping vibration in a drill string

System and method for damping vibration in a drill string

Apparatus for measuring bending on a drill bit operating in a well

TURNER WILLIAM EVANS

Apparatus and method for damping vibration in a drill string