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Inventor

John T. Mayfield, III

Inventor
Loganville, GA, US

Overview

58→
Patents
1989–2021
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 58 as inventor

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

LOC26primary
LOC2627%
F21VFunctional features or details of lighting devices or systems thereof21%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted19%
F21SNon-portable lighting devices18%
Y10TTechnical subjects covered by former us classification5%
A47FSpecial furniture, fittings, or accessories for shops, storehouses, bars, restaurants or the like3%
B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors2%
LOC132%
B23PMetal-working not otherwise provided for1%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling1%
PatentTitleYear
10,928,043Rotatable light fixture202110,006,604LED light fixture20189,797,580'LED light fixture'20179,335,041'LED light fixture'20169,335,031'Door assembly for a light fixture having a diffuser and refractor and method of assembling the same'2016D0739593'Light fixture'2015D0724774'Light fixture'20158,960,962'Ceiling mount fixture'2015D0701341'Light fixture'2014D0690868'Light fixture'2013D0690867'Light fixture'20138,454,192'Strip lighting fixture with channel'2013D0680254'Light fixture'2013D0678586'Light fixture'2013D0677817'Light fixture'2013D0677819'Light fixture'2013D0677820'Light fixture'2013D0673324'Light fixture'20128,337,041'Surface mounted lighting fixture'2012D0672911'Light fixture'2012D0672912'Light fixture'20128,287,332'Method and apparatus for machining workpieces'20128,220,957'Retrofit light assembly'2012D0657904'Light fixture'20128,153,894'Mounting system'20128,100,551'Replacement light fixture and lens assembly for same'2012D0640825'Louver'20117,918,589'Light fixture and lens assembly for same'20117,828,468'Louver assembly for a light fixture'2010D0612534'Bracket'20107,635,198'Replacement light fixture and lens assembly for same'2009D0602093'Oval exit sign'2009D0594590'Louver assembly'20097,530,716'Light fixture'20097,510,305'Air-handling light fixture and lens assembly for same'2009D0586948'Louver assembly'20097,481,552'Light fixture having a reflector assembly and a lens assembly for same'20097,455,422'Light fixture and lens assembly for same'20087,296,910'Light fixture and lens assembly for same'20077,261,435'Light fixture and lens assembly for same'2007D0545993'Light fixture'2007D0545992'Light fixture'2007D0545991'Light fixture housing'2007D0545483'Light fixture'2007D0545482'Light fixture'2007D0545481'Light fixture'2007D0544993'Light fixture housing'2007D0544992'Light fixture'2007D0544634'Light fixture'2007D0544633'Light fixture'20077,229,192'Light fixture and lens assembly for same'2007D0541468'Light fixture lens'20076,231,213'Door frame for lensed troffer'2001D0390835'Cabinet for electronic components'1998D0390198'Instrument case'19985,072,997'Dispenser'19914,927,053'Dispensers'19904,858,783'Dispensers'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1991Based in Clarkston, GA, US· patent location history
1998–2001Based in Stone Mountain, GA, US· patent location history
2007–2010Patents assigned to ACUITY BRANDS INC (19)· patent assignee history
2007–2018Based in Loganville, GA, US· patent location history
2008–2021Patents assigned to ABL IP HOLDING LLC (31)· patent assignee history
2012–2017Patents assigned to MAYFIELD III JOHN T (17)· patent assignee history
2012–2013Patents assigned to ROUSE RUSSELL VERN (9)· patent assignee history
2012Patents assigned to MCILWRAITH GEORGE (5)· patent assignee history
2012Based in Ambarvale, AU· patent location history
2021Based in Grayson, GA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ABL IP HOLDING LLC312008–2021
ACUITY BRANDS INC192007–2010
MAYFIELD III JOHN Tself172012–2017
ROUSE RUSSELL VERN92012–2013
MCILWRAITH GEORGE52012
Locations
LocationPatentsSpan
Loganville, Georgia, US502007–2018
Stone Mountain, Georgia, US31998–2001
Clarkston, Georgia, US31989–1991
Grayson, Georgia, US12021
Ambarvale, AU12012