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Inventor

Astrid Kristoffersen

Inventor
Sandvika, NO

Overview

1→
Patents
2013
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 drilling33%
F16KValves33%
Y10TTechnical subjects covered by former us classification33%
PatentTitleYear
8,567,759'Advanced fluidics gate valve with active flow control for subsea applications'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013Patents assigned to GHARAIBAH EMAD AHMAD OBAID (1)· patent assignee history
2013Patents assigned to KRISTOFFERSEN ASTRID (1)· patent assignee history
2013Patents assigned to VETCO GRAY INC (1)· patent assignee history
2013Based in Sandvika, NO· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GHARAIBAH EMAD AHMAD OBAID12013
KRISTOFFERSEN ASTRIDself12013
VETCO GRAY INC12013
Locations
LocationPatentsSpan
Sandvika, NO12013