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Inventor

David Gilbert Hay

Inventor
Balaclava, AU

Overview

3→
Patents
1976–1993
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.

E21Dprimary
E21DShafts40%
F42DBlasting40%
C04BLime, magnesia20%
PatentTitleYear
5,236,875'Dense SiC ceramic products'19934,003,429'Apparatus for loading gas-conveyed particulate solids into a borehole'19773,952,656'Device and process'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1977Patents assigned to ICI AUSTRALIA LTD (2)· patent assignee history
1976–1977Based in Balaclava, AU· patent location history
1993Patents assigned to FOSECO PTY LTD (1)· patent assignee history
1993Patents assigned to WESTERN MINING CORP (1)· patent assignee history
1993Based in Greensborough, AU· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ICI AUSTRALIA LTD21976–1977
FOSECO PTY LTD11993
WESTERN MINING CORP11993
Locations
LocationPatentsSpan
Balaclava, AU21976–1977
Greensborough, AU11993