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Inventor

Graeme Johnston

Inventor
New South Wales, AU

Overview

2→
Patents
1990–2020
Patent span
Performing operations
Primary field (CPC B)

Patents· 2 as inventor

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

B63Bprimary
B63BShips or other waterborne vessels33%
B63HMarine propulsion or steering33%
E21BEarth or rock drilling33%
PatentTitleYear
10,526,048Mast base assembly20204,949,786'Emergency casing hanger'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990Patents assigned to VECTO GRAY INC (1)· patent assignee history
1990Based in Aberdeen, GB· patent location history
2020Patents assigned to SOLAR SAILOR PTY LTD (1)· patent assignee history
2020Based in New South Wales, AU· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SOLAR SAILOR PTY LTD12020
VECTO GRAY INC11990
Locations
LocationPatentsSpan
New South Wales, AU12020
Aberdeen, GB11990