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Inventor

Raoul Leroux

Inventor
Boucherville, CA

Overview

2→
Patents
1988–1996
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 2 as inventor

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

E21Bprimary
E21BEarth or rock drilling50%
G01BMeasuring length, thickness or similar linear dimensions25%
G01NInvestigating or analysing materials by determining their chemical or physical properties25%
PatentTitleYear
5,540,101'Borehole directional dilatometer'19964,719,803'Borehole extensometer for monitoring relative mass displacements'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988Patents assigned to ROCTEST LTEE LTD (1)· patent assignee history
1988–1996Based in Boucherville, CA· patent location history
1996Patents assigned to ROCTEST LTD (1)· patent assignee history
1996Patents assigned to UNIV COLORADO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ROCTEST LTD11996
ROCTEST LTEE LTD11988
UNIV COLORADO11996
Locations
LocationPatentsSpan
Boucherville, CA21988–1996