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Inventor

Petrus A. J. Stevens

Inventor
East Brighton, AU

Overview

1→
Patents
2016
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 1 as inventor

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

E21Bprimary
E21BEarth or rock drilling100%
PatentTitleYear
9,303,485'Wellbore apparatus and methods for zonal isolations and flow control'2016

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2016Patents assigned to BARRY MICHAEL D (1)· patent assignee history
2016Patents assigned to ELRICK ANDREW J (1)· patent assignee history
2016Patents assigned to EXXONMOBIL UPSTREAM RES CO (1)· patent assignee history
2016Patents assigned to HECKER MICHAEL T (1)· patent assignee history
2016Patents assigned to HOWELL DAVID A (1)· patent assignee history
2016Based in East Brighton, AU· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BARRY MICHAEL D12016
ELRICK ANDREW J12016
EXXONMOBIL UPSTREAM RES CO12016
HECKER MICHAEL T12016
HOWELL DAVID A12016
Locations
LocationPatentsSpan
East Brighton, AU12016