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Inventor

David McKenzie

Inventor
Artarmon, AU

Overview

12→
Patents
1978–2020
Patent span
Physics
Primary field (CPC G)

Patents· 12 as inventor

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

G01Tprimary
G01TMeasurement of nuclear or x-radiation14%
C23CCoating metallic material9%
G06FElectric digital data processing9%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution9%
A61BDiagnosis5%
B64GCosmonautics5%
C21DModifying the physical structure of ferrous metals5%
F03HProducing a reactive propulsive thrust, not otherwise provided for5%
F04DNon-positive-displacement pumps5%
F24SSolar heat collectors5%
PatentTitleYear
10,807,741Internal wire-triggered pulsed cathodic arc propulsion system20208,641,380'Compressor wheel'20148,344,335'Fibre optic dosimeter'20138,119,979'Fibre optic dosimeter'20127,781,912'Uninterruptible power supply with opto-electric couplers for detecting the status of each source'20107,663,123'Fibre optic dosimeter'20106,317,815'Method and apparatus for formatting data in a storage device'20016,088,814'Method and apparatus for reading a non-configured disc drive in an AS/400 system'20005,923,250'Size discriminating dual element PIR detector'19994,901,144'Video endoscope aperture wheel drive system'19904,309,261'Method of and apparatus for reactively sputtering a graded surface coating onto a substrate'19824,128,466'Method and apparatus for reactive sputtering'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–2013Patents assigned to UNIV SYDNEY (5)· patent assignee history
1982–2020Based in Artarmon, AU· patent location history
1999Based in Brampton, CA· patent location history
2000–2001Patents assigned to EMC CORP (2)· patent assignee history
2000–2001Based in Lakewood, CA, US· patent location history
2010Based in Sunnyvale, CA, US· patent location history
2012–2013Patents assigned to ELSEY JUSTIN (2)· patent assignee history
2012–2013Patents assigned to FLEMING SIMON (2)· patent assignee history
2012–2013Patents assigned to LAMBERT JAMIL (2)· patent assignee history
2014Based in Huddersfield, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UNIV SYDNEY51978–2013
ELSEY JUSTIN22012–2013
EMC CORP22000–2001
FLEMING SIMON22012–2013
LAMBERT JAMIL22012–2013
Locations
LocationPatentsSpan
Artarmon, AU51982–2020
Lakewood, California, US22000–2001
Huddersfield, GB12014
Sunnyvale, California, US12010
Brampton, CA11999