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Inventor

Donald MacKay

Inventor
Roxbury, CT, US

Overview

3→
Patents
1987–2021
Patent span
Performing operations
Primary field (CPC B)

Patents· 3 as inventor

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

B41Jprimary
B41JTypewriters29%
B41MPrinting, duplicating, marking, or copying processes14%
F16KValves14%
G05DSystems for controlling or regulating non-electric variables14%
G06KGraphical data reading14%
Y10TTechnical subjects covered by former us classification14%
PatentTitleYear
10,882,309Printing system and method20215,181,049'Phase change ink replenishment system'19934,671,317'Water supply systems'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Patents assigned to MACKAY DONALD H C (1)· patent assignee history
1987Based in Lower Hutt, NZ· patent location history
1993Patents assigned to DATAPRODUCTS CORP (1)· patent assignee history
1993Based in Calabasas, CA, US· patent location history
2021Patents assigned to ILLINOIS TOOL WORKS (1)· patent assignee history
2021Based in Roxbury, CT, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DATAPRODUCTS CORP11993
ILLINOIS TOOL WORKS12021
MACKAY DONALD H Cself11987
Locations
LocationPatentsSpan
Roxbury, CT, US12021
Calabasas, California, US11993
Lower Hutt, NZ11987