LexDanaLexDanabeta
Inventor

Amrik S. Nijjar

Inventor
Houston, TX, US

Overview

6→
Patents
1983–2019
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 6 as inventor

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

E21Bprimary
E21BEarth or rock drilling86%
Y10TTechnical subjects covered by former us classification14%
PatentTitleYear
10,344,540Coupling for high strength riser with mechanically attached support members with load shoulders20197,156,039'Keel guide system'20076,095,242'Casing hanger'20006,065,542'Adjustable hanger for tubular strings'20005,878,816'Adjustable casing hanger'19994,403,628'Inside blowout preventer'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983Patents assigned to WOOD GEORGE & COMPANY (1)· patent assignee history
1983–2019Based in Houston, TX, US· patent location history
1999–2000Patents assigned to FMC CORP (3)· patent assignee history
2007Patents assigned to FMC TECHNOLOGIES (1)· patent assignee history
2019Patents assigned to FMC TECH INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FMC CORP31999–2000
FMC TECH INC12019
FMC TECHNOLOGIES12007
WOOD GEORGE & COMPANY11983
Locations
LocationPatentsSpan
Houston, Texas, US61983–2019