Inventor

Ronald P. Stieger

Inventor

Houston, TX, US

Overview

1993

Patent span

Fixed constructions

Primary field (CPC E)

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

E21Bprimary

E21BEarth or rock drilling50%

G01NInvestigating or analysing materials by determining their chemical or physical properties50%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1993Patents assigned to EXXON PRODUCTION RESEARCH CO (1)· patent assignee history

1993Based in Houston, TX, US· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EXXON PRODUCTION RESEARCH CO	1	1993

Locations

Location	Patents	Span
Houston, Texas, US	1	1993