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Inventor

Eugen R. Werlein

Inventor
Simonton, TX, US

Overview

1→
Patents
1990
Patent span
Chemistry
Primary field (CPC C)

Patents· 1 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 elsewhere100%
PatentTitleYear
4,978,461'Low and high temperature drilling fluids based on sulfonated terpolymer ionomers'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to EXXON RESEARCH ENGINEERING CO (1)· patent assignee history
1990Based in Simonton, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
EXXON RESEARCH ENGINEERING CO11990
Locations
LocationPatentsSpan
Simonton, Texas, US11990