LexDanaLexDanabeta
Inventor

John K. Roberts

Inventor
Grand Rapids, MI, US

Overview

67→
Patents
1978–2019
Patent span
Physics
Primary field (CPC G)

Patents· 67 as inventor

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

H05Bprimary
H05BElectric heating11%
G09GArrangements or circuits for control of indicating devices using static means to present variable information9%
F21VFunctional features or details of lighting devices or systems thereof8%
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 emitted7%
F21KNon-electric light sources using luminescence5%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein4%
F21SNon-portable lighting devices4%
F21WIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to uses or applications of lighting devices or systems4%
G09FDisplaying4%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for3%
PatentTitleYear
10,502,935Image sensor modules and luminaires incorporating the same201910,405,403Apparatus, methods and systems for providing lighting and communication201910,348,974Solid state lighting fixtures and image capture systems201910,302,278LED bulb with back-reflecting optic201910,306,738Image analysis techniques201910,251,245Automatic mapping of devices in a distributed lighting network201910,211,660LED lighting device with adaptive profiles for controlling power consumption201910,203,103LED luminaire having enhanced thermal management20199,930,756'Apparatus, methods and systems for providing lighting and communication'2018D0812805'Lighting apparatus'20189,826,598'Lighting fixture with improved power management'20179,799,243'Lighting devices including solid state emitter groups for illuminating printed material with enhanced vibrancy'20179,769,900'Lighting fixture with image sensor module'20179,706,619'Lighting fixture with image sensor'20179,605,835'Solid-state luminaires for general illumination'20179,335,214'Apparatus and methods for selecting light emitters'20169,335,006'Saturated yellow phosphor converted LED and blue converted red LED'20168,998,444'Solid state lighting devices including light mixtures'20158,946,609'Solid state luminaires for general illumination'20158,941,331'Solid state lighting panels with variable voltage boost current sources'20158,878,766'Apparatus and methods for selecting light emitters for a transmissive display'20148,836,624'Partially filterless and two-color subpixel liquid crystal display devices, mobile electronic devices including the same, and methods of operating the same'20148,829,820'Systems and methods for protecting display components from adverse operating conditions'20148,823,630'Systems and methods for providing color management control in a lighting panel'20148,764,226'Solid state array modules for general illumination'20148,651,685'Apparatus and methods for backlight unit with vertical interior reflectors'20148,556,464'Solid state lighting units and methods of forming solid state lighting units'20138,514,210'Systems and methods for calibrating solid state lighting panels using combined light output measurements'20138,513,871'Apparatus and methods for combining light emitters'20138,461,776'Solid state lighting panels with variable voltage boost current sources'20138,456,388'Systems and methods for split processor control in a solid state lighting panel'20138,449,130'Solid state lighting panels with limited color gamut and methods of limiting color gamut in solid state lighting panels'20138,350,461'Apparatus and methods for combining light emitters'20138,330,710'Systems and methods for controlling a solid state lighting panel'20128,294,075'Solid state luminaires for general illumination'20128,278,846'Systems and methods for calibrating solid state lighting panels'20128,267,542'Apparatus and methods for selecting light emitters'20128,240,875'Solid state linear array modules for general illumination'20128,203,286'Solid state lighting panels with variable voltage boost current sources'20128,177,382'Apparatus and methods for multiplanar optical diffusers and display panels for using the same'20128,049,709'Systems and methods for controlling a solid state lighting panel'20117,993,021'Multiple color lighting element cluster tiles for solid state lighting panels'20117,959,325'Solid state lighting units and methods of forming solid state lighting units'20117,952,544'Partially filterless liquid crystal display devices and methods of operating the same'20117,926,300'Adaptive adjustment of light output of solid state lighting panels'20117,872,430'Solid state lighting panels with variable voltage boost current sources'20117,789,529'LED lighting units and assemblies with edge connectors'20107,777,166'Solid state luminaires for general illumination including closed loop feedback control'20107,712,917'Solid state lighting panels with limited color gamut and methods of limiting color gamut in solid state lighting panels'20107,690,812'Apparatus and methods for conformable diffuse reflectors for solid state lighting devices'20107,621,655'LED lighting units and assemblies with edge connectors'2009D0585847'LED lighting tile'20096,899,200'Sound barrier'20055,619,375'Mirror coating'19975,619,374'Mirror coating'19975,528,422'Mirror coating'19965,481,409'Mirror assembly'1996D0363920'Electrical circuit board'19955,439,725'Floor mat for an overland vehicle'19955,361,190'Mirror assembly'19945,355,284'Mirror assembly'19945,207,492'Mirror assembly'1993H0001109'Instrument display apparatus'19925,128,659'Instrument display apparatus'19925,014,167'Visual signaling apparatus'19915,005,009'Method and apparatus for multiple object viewing'19914,127,348'Road studs'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1997Patents assigned to MUTH K W CO INC (12)· patent assignee history
1991–1997Based in Sheboygan, WI, US· patent location history
2005Based in New South Wales, AU· patent location history
2009–2019Patents assigned to CREE INC (50)· patent assignee history
2009–2019Based in Grand Rapids, MI, US· patent location history
2012–2014Patents assigned to ROBERTS JOHN K (12)· patent assignee history
2012–2016Patents assigned to YOU CHENHUA (12)· patent assignee history
2012–2018Patents assigned to ROBERTS JOHN (11)· patent assignee history
2013Based in Ellicott City, MD, US· patent location history
2017–2019Based in Durham, NC, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CREE INC502009–2019
MUTH K W CO INC121991–1997
ROBERTS JOHN Kself122012–2014
YOU CHENHUA122012–2016
ROBERTS JOHNself112012–2018
Locations
LocationPatentsSpan
Grand Rapids, MI, US412009–2019
Sheboygan, WI, US121991–1997
Durham, NC, US102017–2019
Ellicott City, Maryland, US12013
New South Wales, AU12005