Inventor

Richard V. Johnson

Inventor

Pasadena, CA, US

Overview

10→

Patents

1979–2021

Patent span

Physics

Primary field (CPC G)

Patents· 10 as inventor

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

G02Fprimary

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein24%

H04NPictorial communication, e.g. television24%

G06KGraphical data reading14%

G02BOptical elements, systems or apparatus10%

B41JTypewriters5%

E04FFinishing work on buildings, e.g. stairs, floors5%

E04HBuildings or like structures for particular purposes5%

G01DMeasuring not specially adapted for a specific variable5%

G06FElectric digital data processing5%

Y02ATechnologies for adaptation to climate change5%

PatentTitleYear

11,093,594Cognitive user identification recommendation2021 6,374,553'Concrete step shelter'2002 4,514,739'Cross scan beam positioner for multiple channel laser ROS'1985 4,357,627'Method and apparatus for improving resolution of scophony scanning system utilizing carrier phase reversal'1982 4,348,079'Acousto-optic device utilizing Fresnel zone plate electrode array'1982 4,308,544'Electronic alignment of laser beam utilized in a laser scanning system'1981 4,281,904'TIR Electro-optic modulator with individually addressed electrodes'1981 4,253,725'Single sideband scanner'1981 4,205,348'Laser scanning utilizing facet tracking and acousto pulse imaging techniques'1980 4,170,028'Facet tracking in laser scanning'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1985Patents assigned to XEROX CORP (8)· patent assignee history

1979–1985Based in Pasadena, CA, US· patent location history

2002Based in Milford, DE, US· patent location history

2021Patents assigned to IBM (1)· patent assignee history

2021Based in Raleigh, NC, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
XEROX CORP	8	1979–1985
IBM	1	2021

Locations

Location	Patents	Span
Pasadena, California, US	8	1979–1985
Raleigh, NC, US	1	2021
Milford, Delaware, US	1	2002