Inventor
Brian W. Walker
Inventor
Cedar Rapids, IA, US
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus12%
H04BTransmission12%
H04LTransmission of digital information, e.g. telegraphic communication12%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein9%
G09FDisplaying9%
A63HToys, e.g. tops, dolls, hoops or building blocks6%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them6%
A61LMethods or apparatus for sterilising materials or objects in general3%
A63JDevices for theatres, circuses, or the like3%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general3%
PatentTitleYear
10,705,380Curved backlight and system for stray light control202010,596,281Sterilizing touch screen displays with ultraviolet light202010,469,301Multiplex of high definition radio stations201910,365,482Light control system20199,644,816'Tailored stray light control for display applications'20179,088,467'Peak-to-average power reduction method'20158,681,290'System for improvement of light insertion into a light guide from light-emitting diodes (LEDs)'20148,452,245'Impedance measurement in an active radio frequency transmitter'20138,419,203'Single card multi mode LCD backlight'20138,369,431'Peak-to-average power reduction method'20138,213,885'Impedance measurement in an active radio frequency transmitter'20127,970,091'Method for reducing spectral regrowth in a spectrally efficient digital modulation scheme'20117,581,835'Light show device and method of entertaining'20097,475,508'Inflatable electrical shocking weapon'20097,252,079'Safe air-pressure-launched toy rocket system and method of entertaining'20076,962,415'Electro-optical dimming system'20056,802,755'Light illuminated toy device'20046,053,277'Silencer assembly for pressurized gases'2000RE036197'Hand-held light projector for producing light show'19995,526,076'Hand-held light projector for producing light show'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999–2009Based in Bend, OR, US· patent location history
2000–2013Patents assigned to WALKER BRIAN (5)· patent assignee history
2005Based in Glendale, AZ, US· patent location history
2007–2017Patents assigned to WALKER BRIAN W (6)· patent assignee history
2011–2019Patents assigned to NAUTEL LTD (6)· patent assignee history
2011–2015Based in Halifax, CA· patent location history
2013–2020Patents assigned to ROCKWELL COLLINS INC (6)· patent assignee history
2013–2020Based in Cedar Rapids, IA, US· patent location history
2017Patents assigned to BARNIDGE TRACY J (1)· patent assignee history
2019Based in Bedford, CA· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NAUTEL LTD | 6 | 2011–2019 |
| ROCKWELL COLLINS INC | 6 | 2013–2020 |
| WALKER BRIAN Wself | 6 | 2007–2017 |
| WALKER BRIANself | 5 | 2000–2013 |
| BARNIDGE TRACY J | 1 | 2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Cedar Rapids, IA, US | 6 | 2013–2020 |
| Halifax, CA | 5 | 2011–2015 |
| Bend, OR, US | 5 | 1999–2009 |
| Bedford, CA | 1 | 2019 |
| Glendale, AZ, US | 1 | 2005 |