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Inventor

J. Ernest Brown

Inventor
Katy, TX, US

Overview

3→
Patents
1996–1999
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere50%
E21BEarth or rock drilling33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
PatentTitleYear
RE036466'Sand control without requiring a gravel pack screen'19995,964,295'Methods and compositions for testing subterranean formations'19995,551,514'Sand control without requiring a gravel pack screen'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996Patents assigned to DOWELL A DIVISION OF SCHLUMBER (1)· patent assignee history
1996Based in Madisonville, LA, US· patent location history
1999Patents assigned to DOWEL (1)· patent assignee history
1999Patents assigned to SCHLUMBERGER TECHNOLOGY CORP D (1)· patent assignee history
1999Based in Katy, TX, US· patent location history
1999Based in Bixby, OK, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DOWEL11999
DOWELL A DIVISION OF SCHLUMBER11996
SCHLUMBERGER TECHNOLOGY CORP D11999
Locations
LocationPatentsSpan
Katy, Texas, US11999
Bixby, OK, US11999
Madisonville, LA, US11996