Inventor

Richard J. Gran

Inventor

Farmingdale, NY, US

Overview

7→

Patents

1992–1998

Patent span

Performing operations

Primary field (CPC B)

Patents· 7 as inventor

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

H02Mprimary

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems18%

B60GVehicle suspension arrangements9%

B60LPropulsion of electrically-propelled vehicles9%

B61FRail vehicle suspensions, e.g. underframes, bogies or arrangements of wheel axles9%

G01RMeasuring electric variables9%

G06FElectric digital data processing9%

G08GTraffic control systems9%

H02JElectric power networks9%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications9%

Y04SSystems integrating technologies related to power network operation, communication or information technologies for improving the electrical power generation, transmission, distribution, management or usage, i.e. smart grids9%

PatentTitleYear

5,801,937'Uninterruptible power supplies having cooled components'1998 5,734,565'Reducing switching losses in series connected bridge inverters and amplifiers'1998 5,560,589'Active vibration damping arrangement for transportation vehicles'1996 5,416,711'Infra-red sensor system for intelligent vehicle highway systems'1995 5,227,728'Gradient driver control in magnetic resonance imaging'1993 5,170,715'Aeromagnetic control of maglev vehicles with turntable mounted hinged control surface having two degrees of motion'1992 5,089,982'Two dimensional fast Fourier transform converter'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1995Patents assigned to GRUMMAN AEROSPACE CORP (3)· patent assignee history

1992–1996Based in Farmingdale, NY, US· patent location history

1993Patents assigned to UNIV CALIFORNIA (1)· patent assignee history

1996Patents assigned to NORTHROP GRUMMAN CORP (1)· patent assignee history

1998Patents assigned to AMERICAN SUPERCONDUCTOR CORP (2)· patent assignee history

1998Based in Northborough, MA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
GRUMMAN AEROSPACE CORP	3	1992–1995
AMERICAN SUPERCONDUCTOR CORP	2	1998
NORTHROP GRUMMAN CORP	1	1996
UNIV CALIFORNIA	1	1993

Locations

Location	Patents	Span
Farmingdale, New York, US	5	1992–1996
Northborough, Massachusetts, US	2	1998