Harold L. Petrie

Person

Pasadena, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Oil well standing valve
- Patent number 4,519,457
- Issue date May 28, 1985
- Armco Inc.
- Ronald A. Holland
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sealing structure for reciprocating pistons exposed to high pressur...
- Patent number 4,304,410
- Issue date Dec 8, 1981
- Kobe, Inc.
- John W. Erickson
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Submersible electrically powered centrifugal and jet pump assembly
- Patent number 4,294,573
- Issue date Oct 13, 1981
- Kobe, Inc.
- John W. Erickson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Erosion resistant jet pump and method of making same
- Patent number 4,280,662
- Issue date Jul 28, 1981
- Kobe, Inc.
- John W. Erickson
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Downhole cleaner assembly for cleansing lubricant of downhole turbo...
- Patent number 4,264,285
- Issue date Apr 28, 1981
- Kobe, Inc.
- John W. Erickson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Jet pump with ceramic venturi
- Patent number 4,135,861
- Issue date Jan 23, 1979
- Kobe, Inc.
- Francis B. Brown
- E21 - EARTH DRILLING MINING
Information Patent Grant
Articulated turbine pump
- Patent number 4,082,482
- Issue date Apr 4, 1978
- Kobe, Inc.
- John W. Erickson
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Harold L. Petrie

Person

Patents Grantslast 30 patents

Oil well standing valve

Sealing structure for reciprocating pistons exposed to high pressur...

Submersible electrically powered centrifugal and jet pump assembly

Erosion resistant jet pump and method of making same

Downhole cleaner assembly for cleansing lubricant of downhole turbo...

Jet pump with ceramic venturi

Articulated turbine pump