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Inventor

Sau-Wai Wong

Inventor
Rijswijk, NL

Overview

3→
Patents
2007–2016
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 3 as inventor

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

E21Bprimary
E21BEarth or rock drilling43%
C07CAcyclic or carbocyclic compounds14%
E21CMining or quarrying14%
H05BElectric heating14%
Y10TTechnical subjects covered by former us classification14%
PatentTitleYear
9,243,487'Electrofracturing formations'20167,527,094'Double barrier system for an in situ conversion process'20097,213,650'System and method for scale removal in oil and gas recovery operations'2007

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2007Patents assigned to HALLIBURTON ENERGY SERV INC (1)· patent assignee history
2007Based in Houston, TX, US· patent location history
2009–2016Patents assigned to SHELL OIL CO (2)· patent assignee history
2009–2016Based in Rijswijk, NL· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SHELL OIL CO22009–2016
HALLIBURTON ENERGY SERV INC12007
Locations
LocationPatentsSpan
Rijswijk, NL22009–2016
Houston, Texas, US12007