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Inventor

David E. Courtnage

Inventor
St. Marys, CA

Overview

1→
Patents
2018
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 drilling50%
G06FElectric digital data processing50%
PatentTitleYear
10,082,000Apparatus and method for isolating fluid flow in an open hole completion2018

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2018Patents assigned to COURTNAGE DAVID E (1)· patent assignee history
2018Patents assigned to EXXONMOBIL UPSTREAM RES CO (1)· patent assignee history
2018Patents assigned to GRUBERT MARCEL A (1)· patent assignee history
2018Patents assigned to WAN JING (1)· patent assignee history
2018Based in St. Marys, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
COURTNAGE DAVID Eself12018
EXXONMOBIL UPSTREAM RES CO12018
GRUBERT MARCEL A12018
WAN JING12018
Locations
LocationPatentsSpan
St. Marys, CA12018