Membership
Tour
Register
Log in
Vernon E. Koval
Follow
Person
Rosenberg, TX, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Optimized liner thickness for positive displacement drilling motors
Patent number
6,604,921
Issue date
Aug 12, 2003
Schlumberger Technology Corporation
Andrei N. Plop
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Non-elastomeric stator and downhole drilling motors incorporating same
Patent number
6,241,494
Issue date
Jun 5, 2001
Schlumberger Technology Company
Demosthenis G. Pafitis
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for evaluating the power output of a drilling motor under do...
Patent number
6,019,180
Issue date
Feb 1, 2000
Schlumberger Technology Corporation
Demosthenis Pafitis
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
OPTIMIZED LINER THICKNESS FOR POSITIVE DISPLACEMENT DRILLING MOTORS
Publication number
20030138338
Publication date
Jul 24, 2003
Andrei N. Plop
E21 - EARTH DRILLING MINING