Membership
Tour
Register
Log in
Lester L. Cain
Follow
Person
Houston, TX, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Fluid flow and pressure control system and method
Patent number
6,253,787
Issue date
Jul 3, 2001
M-I L.L.C.
Roger Suter
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for controlling back pressure
Patent number
4,355,784
Issue date
Oct 26, 1982
Warren Automatic Tool Company
Lester L. Cain
E21 - EARTH DRILLING MINING