Inventor

James A. Barker

Inventor
University Heights, OH, US

Overview

13→
Patents
1993–2021
Patent span
Physics
Primary field (CPC G)

Patents· 13 as inventor

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

G06Fprimary
G06FElectric digital data processing40%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
G01FMeasuring volume, volume flow, mass flow or liquid level10%
Y10TTechnical subjects covered by former us classification10%
B60PVehicles adapted for load transportation or to transport, to carry, or to comprise special loads or objects5%
G01MTesting static or dynamic balance of machines or structures5%
H01PWaveguides5%
H01QAntennas, i.e. radio aerials5%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2015Patents assigned to BARKER JAMES A (3)· patent assignee history
1993Based in Bloomington, IN, US· patent location history
1999–2015Based in University Heights, OH, US· patent location history
2002–2015Patents assigned to IBM (5)· patent assignee history
2002–2013Patents assigned to PEARSON EDUCATION INC (5)· patent assignee history
2008Patents assigned to CELERITY INC (2)· patent assignee history
2008Based in Lewisville, TX, US· patent location history
2009Based in Sparks, NV, US· patent location history
2013–2015Patents assigned to BAER WILLIAM J (2)· patent assignee history
2021Based in Torrance, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
IBM52002–2015
PEARSON EDUCATION INC52002–2013
BARKER JAMES Aself31993–2015
BAER WILLIAM J22013–2015
CELERITY INC22008
Locations
LocationPatentsSpan
University Heights, OH, US81999–2015
Lewisville, Texas, US22008
Torrance, California, US12021
Sparks, NV, US12009
Bloomington, IN, US11993