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Inventor

Chang Hin Choong

Inventor
Johor Bahru, MY

Overview

6→
Patents
2011–2019
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 6 as inventor

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

F04Dprimary
F04DNon-positive-displacement pumps22%
F04FPumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped22%
F24HFluid heaters, e.g. water or air heaters, having heat-generating means, e.g. heat pumps, in general22%
F24FAir-conditioning17%
LOC2311%
Y10TTechnical subjects covered by former us classification6%
PatentTitleYear
10,344,773Fan assembly20198,873,940'Fan assembly'20148,734,094'Fan assembly'20148,366,403'Fan assembly'2013D0672023'Fan heater'2012D0643098'Fan heater'2011

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2011Patents assigned to DYSON LTD (1)· patent assignee history
2011–2019Based in Johor Bahru, MY· patent location history
2012–2019Patents assigned to DYSON TECHNOLOGY LTD (5)· patent assignee history
2012–2014Patents assigned to CHOONG CHANG HIN (4)· patent assignee history
2012–2014Patents assigned to WALLACE JOHN DAVID (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DYSON TECHNOLOGY LTD52012–2019
CHOONG CHANG HINself42012–2014
WALLACE JOHN DAVID42012–2014
DYSON LTD12011
Locations
LocationPatentsSpan
Johor Bahru, MY62011–2019