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Inventor

Michael Ruggier

Inventor
Blairs, GB

Overview

2→
Patents
1988–2010
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 drilling33%
F16HGearing33%
Y10TTechnical subjects covered by former us classification33%
PatentTitleYear
7,810,583'Drilling systems and methods'20104,771,646'Rotating and indexing mechanism'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988Patents assigned to VETCO GRAY INC (1)· patent assignee history
1988Based in Richmond, GB· patent location history
2010Patents assigned to SHELL OIL CO (1)· patent assignee history
2010Based in Blairs, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHELL OIL CO12010
VETCO GRAY INC11988
Locations
LocationPatentsSpan
Blairs, GB12010
Richmond, GB11988