Inventor

David B. Cohn

Inventor
Torrance, CA, US

Overview

21→
Patents
1976–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 21 as inventor

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

H01Sprimary
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light41%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light9%
G01NInvestigating or analysing materials by determining their chemical or physical properties9%
H01TSpark gaps9%
B01DSeparation6%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein6%
A61FFilters implantable into blood vessels3%
A61LMethods or apparatus for sterilising materials or objects in general3%
B23KSoldering or unsoldering3%
C07KPeptides3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1988Patents assigned to NORTHROP CORP (5)· patent assignee history
1976–2013Based in Torrance, CA, US· patent location history
1985–1988Based in San Pedro, CA, US· patent location history
1985Based in Los Angeles, CA, US· patent location history
1988–1997Patents assigned to HUGHES AIRCRAFT CO (9)· patent assignee history
1998–2003Patents assigned to RAYTHEON CO (4)· patent assignee history
2012–2013Patents assigned to COHN DAVID B (2)· patent assignee history
2012–2013Patents assigned to DBC TECHNOLOGY CORP (2)· patent assignee history
2021Based in Jerusalem, IL· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HUGHES AIRCRAFT CO91988–1997
NORTHROP CORP51976–1988
RAYTHEON CO41998–2003
COHN DAVID Bself22012–2013
DBC TECHNOLOGY CORP22012–2013
Locations
LocationPatentsSpan
Torrance, California, US151976–2013
San Pedro, California, US41985–1988
Jerusalem, IL12021
Los Angeles, California, US11985