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Inventor

Per-Bjarte Tanche-Larsen

Inventor
Sandnes, NO

Overview

2→
Patents
2012–2013
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

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

C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere67%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests33%
PatentTitleYear
8,592,350'Surfactant additives used to retain producibility while drilling'20138,148,303'Surfactant additives used to retain producibility while drilling'2012

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2012–2013Patents assigned to HALLIBURTON ENERGY SERV INC (2)· patent assignee history
2012–2013Patents assigned to HORTON DAVID (2)· patent assignee history
2012–2013Patents assigned to TANCHE-LARSEN PER-BJARTE (2)· patent assignee history
2012–2013Patents assigned to VAN ZANTEN RYAN (2)· patent assignee history
2012–2013Based in Sandnes, NO· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HALLIBURTON ENERGY SERV INC22012–2013
HORTON DAVID22012–2013
TANCHE-LARSEN PER-BJARTEself22012–2013
VAN ZANTEN RYAN22012–2013
Locations
LocationPatentsSpan
Sandnes, NO22012–2013