James H. Holt

Person

Willis, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Insert gas lift injection assembly for retrofitting string for alte...
- Patent number 8,631,875
- Issue date Jan 21, 2014
- Baker Hughes Incorporated
- Hai H. Nguyen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Retaining lines in bypass groove on downhole equipment
- Patent number 7,431,082
- Issue date Oct 7, 2008
- Baker Hughes Incorporated
- James H. Holt
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mono-trip cement thru completion
- Patent number 7,373,980
- Issue date May 20, 2008
- Baker Hughes Incorporated
- Keith E. Lewis
- E21 - EARTH DRILLING MINING
Information Patent Grant
Barrier orifice valve for gas lift
- Patent number 7,360,602
- Issue date Apr 22, 2008
- Baker Hughes Incorporated
- James H. Kritzler
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Plunger with multiple jackets
- Patent number 7,093,652
- Issue date Aug 22, 2006
- William R. Gray
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Mono-trip cement thru completion
- Patent number 7,069,992
- Issue date Jul 4, 2006
- Baker Hughes Incorporated
- Keith E. Lewis
- E21 - EARTH DRILLING MINING
Information Patent Grant
Plunger with flow passage and improved stopper
- Patent number 6,725,916
- Issue date Apr 27, 2004
- William R. Gray
- E21 - EARTH DRILLING MINING
Information Patent Grant
Cross-over housing for gas lift valve
- Patent number 6,491,105
- Issue date Dec 10, 2002
- Weatherford/Lamb, Inc.
- James H. Holt
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Side pocket mandrel having forged indentations
- Patent number 4,759,410
- Issue date Jul 26, 1988
- Hughes Tool Company
- Wilhelm E. Benker
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Valve for Use in Chemical Injectors and the Like
- Publication number 20130180592
- Publication date Jul 18, 2013
- BAKER HUGHES INCORPORATED
- Zhi Yong He
- E21 - EARTH DRILLING MINING
Information Patent Application
Insert Gas Lift Injection Assembly for Retrofitting String for Alte...
- Publication number 20120312554
- Publication date Dec 13, 2012
- BAKER HUGHES INCORPORATED
- Hai H. Nguyen
- E21 - EARTH DRILLING MINING
Information Patent Application
Barrier orifice valve for gas lift
- Publication number 20070181312
- Publication date Aug 9, 2007
- BAKER HUGHES INCORPORATED
- James H. Kritzler
- E21 - EARTH DRILLING MINING
Information Patent Application
Retaining lines in bypass groove on downhole equipment
- Publication number 20070039727
- Publication date Feb 22, 2007
- James H. Holt
- E21 - EARTH DRILLING MINING
Information Patent Application
Mono-trip cement thru completion
- Publication number 20070029092
- Publication date Feb 8, 2007
- BAKER HUGHES INCORPORATED
- Keith E. Lewis
- E21 - EARTH DRILLING MINING
Information Patent Application
Plunger with flow passage and chamber
- Publication number 20050056416
- Publication date Mar 17, 2005
- William R. Gray
- E21 - EARTH DRILLING MINING
Information Patent Application
Cement through side pocket mandrel
- Publication number 20040112599
- Publication date Jun 17, 2004
- BAKER HUGHES INCORPORATED
- James H. Holt
- E21 - EARTH DRILLING MINING
Information Patent Application
Mono-trip cement thru completion
- Publication number 20040112606
- Publication date Jun 17, 2004
- BAKER HUGHES INCORPORATED
- Keith E. Lewis
- E21 - EARTH DRILLING MINING
Information Patent Application
Plunger with multiple jackets
- Publication number 20030155116
- Publication date Aug 21, 2003
- William R. Gray
- E21 - EARTH DRILLING MINING
Information Patent Application
Plunger with flow passage and improved stopper
- Publication number 20030155117
- Publication date Aug 21, 2003
- William R. Gray
- E21 - EARTH DRILLING MINING
Information Patent Application
Plunger with novel sealing
- Publication number 20030155129
- Publication date Aug 21, 2003
- William R. Gray
- E21 - EARTH DRILLING MINING
Information Patent Application
Crossover housing for gas lift valve
- Publication number 20020139534
- Publication date Oct 3, 2002
- Weatherford/Lamb
- James H. Holt
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

James H. Holt

Person

Patents Grantslast 30 patents

Insert gas lift injection assembly for retrofitting string for alte...

Retaining lines in bypass groove on downhole equipment

Mono-trip cement thru completion

Barrier orifice valve for gas lift

Plunger with multiple jackets

Mono-trip cement thru completion

Plunger with flow passage and improved stopper

Cross-over housing for gas lift valve

Side pocket mandrel having forged indentations

Patents Applicationslast 30 patents

Valve for Use in Chemical Injectors and the Like

Insert Gas Lift Injection Assembly for Retrofitting String for Alte...

Barrier orifice valve for gas lift

Retaining lines in bypass groove on downhole equipment

Mono-trip cement thru completion

Plunger with flow passage and chamber

Cement through side pocket mandrel

Mono-trip cement thru completion

Plunger with multiple jackets

Plunger with flow passage and improved stopper

Plunger with novel sealing

Crossover housing for gas lift valve