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Inventor

Keith Loder Lewis

Inventor
Malvern, GB

Overview

14→
Patents
1985–2018
Patent span
Physics
Primary field (CPC G)

Patents· 14 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus20%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein11%
C23CCoating metallic material9%
G01TMeasurement of nuclear or x-radiation6%
G06KGraphical data reading6%
G07DHandling of coins or valuable papers, e.g. testing, sorting by denominations, counting, dispensing, changing or depositing6%
H04BTransmission6%
H04JMultiplex communication6%
H04NPictorial communication, e.g. television6%
C03CChemical composition of glasses, glazes or vitreous enamels3%
PatentTitleYear
9,921,383'High-density modular WDM system—high density passive fiber module (PFM), tray and chassis interchangeable solution'20189,793,997'Tuning device for pluggable optical transceivers'20179,391,706'Tuning device for pluggable optical transceivers'20168,447,188'Dynamic optical reflector and interrogation system'20138,017,899'Coded aperture imaging using successive imaging of a reference object at different positions'20117,969,639'Optical modulator'20117,888,626'Coded aperture imaging system having adjustable imaging performance with a reconfigurable coded aperture mask'20116,980,362'Optical filters'20056,631,033'Multilayer optical filters'20036,271,899'Tunable nano-phase polymer dispersed liquid crystal filter'20015,841,528'Anti counterfeit apparatus'19985,753,379'Protective coatings for optical components'19985,007,689'Infra-red transmitting optical components and optical coatings therefor'19914,560,576'Method of coating optical components'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–2001Patents assigned to SECR DEFENCE BRIT (5)· patent assignee history
1985–2013Based in Malvern, GB· patent location history
1991–1998Patents assigned to BARR & STROUD LTD (2)· patent assignee history
2003–2013Patents assigned to QINETIQ LTD (6)· patent assignee history
2011Based in Worcestershire, GB· patent location history
2013Patents assigned to BRUNSON KEVIN M (1)· patent assignee history
2016–2018Based in Brecksville, OH, US· patent location history
2017–2018Patents assigned to CHAMPION OPTICAL NETWORK ENG LLC (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
QINETIQ LTD62003–2013
SECR DEFENCE BRIT51985–2001
BARR & STROUD LTD21991–1998
CHAMPION OPTICAL NETWORK ENG LLC22017–2018
BRUNSON KEVIN M12013
Locations
LocationPatentsSpan
Malvern, GB101985–2013
Brecksville, OH, US32016–2018
Worcestershire, GB12011