Inventor

James Halvis

Inventor
Severna Park, MD, US

Overview

14→
Patents
1987–2014
Patent span
Electricity
Primary field (CPC H)

Patents· 14 as inventor

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

H10Dprimary
H10DInorganic electric semiconductor devices17%
H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation17%
H04NPictorial communication, e.g. television13%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light9%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution9%
Y02PClimate change mitigation technologies in the production or processing of goods9%
F24SSolar heat collectors4%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure4%
G01SRadio direction-finding4%
G02BOptical elements, systems or apparatus4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1991Patents assigned to US AIR FORCE (5)· patent assignee history
1987–1990Based in Arnold, MD, US· patent location history
1991–2014Based in Severna Park, MD, US· patent location history
1992–1994Patents assigned to WESTINGHOUSE ELECTRIC CORP (3)· patent assignee history
1997–2008Patents assigned to NORTHROP GRUMMAN CORP (3)· patent assignee history
2012–2014Patents assigned to NORTHROP GRUMMAN SYSTEMS CORP (2)· patent assignee history
2014Patents assigned to BLUZER NATHAN (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
US AIR FORCE51987–1991
NORTHROP GRUMMAN CORP31997–2008
WESTINGHOUSE ELECTRIC CORP31992–1994
NORTHROP GRUMMAN SYSTEMS CORP22012–2014
BLUZER NATHAN12014
Locations
LocationPatentsSpan
Severna Park, Maryland, US101991–2014
Arnold, Maryland, US41987–1990