Inventor

Arnold M. Walkow

Inventor

Houston, TX, US

Overview

1982–2007

Patent span

Physics

Primary field (CPC G)

Patents· 20 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

E21Bprimary

E21BEarth or rock drilling36%

G01NInvestigating or analysing materials by determining their chemical or physical properties25%

G01VGeophysics20%

G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light9%

C23FNon-mechanical removal of metallic material from surface2%

F16LPipes2%

G02BOptical elements, systems or apparatus2%

H01RElectrically-conductive connections2%

PatentTitleYear

7,280,214'Method and apparatus for a high resolution downhole spectrometer'2007 7,214,933'Method and apparatus for a downhole fluorescence spectrometer'2007 7,197,195'Fiber optics head utilizing randomized fibers per sensor'2007 7,162,918'Method and apparatus for downhole fluid characterization using flexural mechanical resonators'2007 7,084,392'Method and apparatus for a downhole fluorescence spectrometer'2006 7,016,026'Method and apparatus for a downhole refractometer and attenuated reflectance spectrometer'2006 6,938,470'Method and apparatus for downhole fluid characterization using flexural mechanical resonators'2005 6,798,518'Method and apparatus for a derivative spectrometer'2004 6,794,652'Method and apparatus for a rigid backup light source for down-hole spectral analysis'2004 6,683,681'Method and apparatus for a downhole refractometer and attenuated reflectance spectrometer'2004 5,917,774'Magnetic motion coupling for well logging instruments'1999 5,808,191'Well logging instrument string having flexibly coupled segments and a selectably operable flexible coupling therefor'1998 4,941,349'Coaxial coiled-tubing cable head'1990 4,710,711'Apparatus for nondestructive testing of subsurface piping using three coils with opposing fields'1987 4,540,941'Casing collar indicator for operation in centralized or decentralized position'1985 4,431,963'Apparatus for determining a natural current flow in well casing'1984 4,431,964'Method for determining a natural current flow in well casing'1984 4,415,030'Casing re-entry apparatus for use in inclined oil and gas boreholes'1983 4,410,051'System and apparatus for orienting a well casing perforating gun'1983 4,335,602'Method and apparatus for protecting subsurface electronic assemblies from shock and vibration damage'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1985Patents assigned to DRESSER IND (6)· patent assignee history

1982–2007Based in Houston, TX, US· patent location history

1987–1999Patents assigned to WESTERN ATLAS INT INC (4)· patent assignee history

2004–2007Patents assigned to BAKER HUGHES INC (10)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BAKER HUGHES INC	10	2004–2007
DRESSER IND	6	1982–1985
WESTERN ATLAS INT INC	4	1987–1999

Locations

Location	Patents	Span
Houston, Texas, US	20	1982–2007