Grant L. Hartman

Follow

Person

Walters, OK, US

People

Patents Grantslast 30 patents

Information Patent Grant
Reverse circulation cementing system for cementing a liner
- Patent number 9,869,157
- Issue date Jan 16, 2018
- Halliburton Energy Services, Inc.
- Emile Sevadjian
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for maintaining a fluid column in a wellbore a...
- Patent number 6,622,798
- Issue date Sep 23, 2003
- Halliburton Energy Services, Inc.
- Henry E. Rogers
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for placing and cementing casing in horizontal...
- Patent number 5,829,526
- Issue date Nov 3, 1998
- Halliburton Energy Services, Inc.
- Henry E. Rogers
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
REVERSE CIRCULATION CEMENTING SYSTEM FOR CEMENTING A LINER
- Publication number 20160160603
- Publication date Jun 9, 2016
- Halliburton Energy Services, Inc.
- Emile SEVADJIAN
- E21 - EARTH DRILLING MINING