David R. Underdown

Person

Conroe, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Methods of coating a sand screen component
- Patent number 11,174,711
- Issue date Nov 16, 2021
- Chevron U.S.A. Inc.
- Jeremy Alexander Davis
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Flow induced electrostatic power generator for tubular segments
- Patent number 9,685,890
- Issue date Jun 20, 2017
- Chevron U.S.A. Inc.
- Luis Phillipe Ferreira Costa Tosi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Flow induced electrostatic power generator for tubular segments
- Patent number 9,556,712
- Issue date Jan 31, 2017
- Chevron U.S.A., Inc.
- Luis Phillipe Costa Ferreira Tosi
- E21 - EARTH DRILLING MINING
Information Patent Grant
Controlling pressure during perforating operations
- Patent number 9,371,719
- Issue date Jun 21, 2016
- Chevron U.S.A. Inc.
- David Underdown
- E21 - EARTH DRILLING MINING
Information Patent Grant
Flow sensing apparatus and methods for use in oil and gas wells
- Patent number 9,068,431
- Issue date Jun 30, 2015
- Chevron U.S.A. Inc.
- Luis Phillipe Tosi
- G01 - MEASURING TESTING
Information Patent Grant
Flow-induced electrostatic power generator for downhole use in oil...
- Patent number 8,714,239
- Issue date May 6, 2014
- Luis Phillipe Tosi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Flow-induced electrostatic power generator for downhole use in oil...
- Patent number 8,511,373
- Issue date Aug 20, 2013
- Chevron U.S.A. Inc.
- Luis Phillipe Tosi
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sub-sea membrane separation system with temperature control
- Patent number 6,502,635
- Issue date Jan 7, 2003
- Chevron U.S.A. Inc.
- David R. Underdown
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for wellbore gas separation
- Patent number 6,454,836
- Issue date Sep 24, 2002
- Chevron U.S.A. Inc.
- Mark H. Koelmel
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DOWNHOLE SAND CONTROL SCREEN SYSTEM
- Publication number 20220034202
- Publication date Feb 3, 2022
- Chevron U.S.A. Inc.
- Jeremy Alexander Davis
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Sand Control Screen Assemblies and Associated Methods of Manufacturing
- Publication number 20180238150
- Publication date Aug 23, 2018
- Chevron U.S.A. Inc.
- Jeremy Alexander Davis
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Compositions And Methods For Controlled Break Of Fluid-Loss Barrier...
- Publication number 20180171750
- Publication date Jun 21, 2018
- Chevron U.S.A. Inc.
- Michael James Fuller
- E21 - EARTH DRILLING MINING
Information Patent Application
Filter Media For Sand Control Screen Assemblies
- Publication number 20170362922
- Publication date Dec 21, 2017
- Chevron U.S.A. Inc.
- Antonio Lazo
- E21 - EARTH DRILLING MINING
Information Patent Application
Method, System and Apparatus of Erosion Resistant Filtering Screen...
- Publication number 20150152716
- Publication date Jun 4, 2015
- Chevron U.S.A. Inc.
- Namhyo Kim
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
CONTROLLING PRESSURE DURING PERFORATING OPERATIONS
- Publication number 20140299322
- Publication date Oct 9, 2014
- Chevron U.S.A. Inc.
- David Underdown
- E21 - EARTH DRILLING MINING
Information Patent Application
Flow Induced Electrostatic Power Generator For Tubular Segments
- Publication number 20140210307
- Publication date Jul 31, 2014
- Chevron U.S.A. Inc.
- Luis Phillipe Ferreira Costa Tosi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Flow Induced Electrostatic Power Generator For Tubular Segments
- Publication number 20140202705
- Publication date Jul 24, 2014
- Chevron U.S.A. Inc.
- Luis Phillipe Costa Ferreira Tosi
- E21 - EARTH DRILLING MINING
Information Patent Application
Flow Sensing Apparatus and Methods For Use In Oil and Gas Wells
- Publication number 20130284431
- Publication date Oct 31, 2013
- Chevron U.S.A. Inc.
- Luis Phillipe Tosi
- G01 - MEASURING TESTING
Information Patent Application
System And Method Of Perforating A Well And Preparing A Perforating...
- Publication number 20130087336
- Publication date Apr 11, 2013
- Chevron U.S.A. Inc.
- David R. Underdown
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
FLOW-INDUCED ELECTROSTATIC POWER GENERATOR FOR DOWNHOLE USE IN OIL...
- Publication number 20120273234
- Publication date Nov 1, 2012
- Chevron U.S.A. Inc.
- Luis Phillipe TOSI
- E21 - EARTH DRILLING MINING
Information Patent Application
FLOW-INDUCED ELECTROSTATIC POWER GENERATOR FOR DOWNHOLE USE IN OIL...
- Publication number 20120273235
- Publication date Nov 1, 2012
- Chevron U.S.A. Inc.
- Luis Phillipe TOSI
- E21 - EARTH DRILLING MINING
Information Patent Application
TOOL AND METHOD FOR PLACEMENT OF A COMPONENT INTO A WELL
- Publication number 20120111580
- Publication date May 10, 2012
- Chevron U.S.A. Inc.
- Fraser G. Martin
- E21 - EARTH DRILLING MINING
Information Patent Application
Method and system for regeneration of a membrane used to separate f...
- Publication number 20030079876
- Publication date May 1, 2003
- David R. Underdown
- E21 - EARTH DRILLING MINING
Information Patent Application
Method and system utilizing gravity and membranes to separate water...
- Publication number 20030080061
- Publication date May 1, 2003
- David R. Underdown
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method of maintaining water volume in an oil strata of an oil produ...
- Publication number 20030037923
- Publication date Feb 27, 2003
- Mark A. Emanuele
- E21 - EARTH DRILLING MINING
Information Patent Application
SUB-SEA MEMBRANE SEPARATION SYSTEM WITH TEMPERATURE CONTROL
- Publication number 20020195251
- Publication date Dec 26, 2002
- David R. Underdown
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
System and method for separation of hydrocarbons and contaminants u...
- Publication number 20020195250
- Publication date Dec 26, 2002
- David R. Underdown
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method and system for oil and water separation utilizing a hydrosta...
- Publication number 20020189807
- Publication date Dec 19, 2002
- Chevron U.S.A. Inc. a corporation of Pennsylvania
- Mark A. Emanuele
- E21 - EARTH DRILLING MINING
Information Patent Application
Separation string for the separation of hydrocarbon from contaminan...
- Publication number 20020084073
- Publication date Jul 4, 2002
- David Underdown
- E21 - EARTH DRILLING MINING

David R. Underdown

Person

Patents Grantslast 30 patents

Methods of coating a sand screen component

Flow induced electrostatic power generator for tubular segments

Flow induced electrostatic power generator for tubular segments

Controlling pressure during perforating operations

Flow sensing apparatus and methods for use in oil and gas wells

Flow-induced electrostatic power generator for downhole use in oil...

Flow-induced electrostatic power generator for downhole use in oil...

Sub-sea membrane separation system with temperature control

Method and apparatus for wellbore gas separation

Patents Applicationslast 30 patents

DOWNHOLE SAND CONTROL SCREEN SYSTEM

Sand Control Screen Assemblies and Associated Methods of Manufacturing

Compositions And Methods For Controlled Break Of Fluid-Loss Barrier...

Filter Media For Sand Control Screen Assemblies

Method, System and Apparatus of Erosion Resistant Filtering Screen...

CONTROLLING PRESSURE DURING PERFORATING OPERATIONS

Flow Induced Electrostatic Power Generator For Tubular Segments

Flow Induced Electrostatic Power Generator For Tubular Segments

Flow Sensing Apparatus and Methods For Use In Oil and Gas Wells

System And Method Of Perforating A Well And Preparing A Perforating...

FLOW-INDUCED ELECTROSTATIC POWER GENERATOR FOR DOWNHOLE USE IN OIL...

FLOW-INDUCED ELECTROSTATIC POWER GENERATOR FOR DOWNHOLE USE IN OIL...

TOOL AND METHOD FOR PLACEMENT OF A COMPONENT INTO A WELL

Method and system for regeneration of a membrane used to separate f...

Method and system utilizing gravity and membranes to separate water...

Method of maintaining water volume in an oil strata of an oil produ...

SUB-SEA MEMBRANE SEPARATION SYSTEM WITH TEMPERATURE CONTROL

System and method for separation of hydrocarbons and contaminants u...

Method and system for oil and water separation utilizing a hydrosta...

Separation string for the separation of hydrocarbon from contaminan...