LexDanaLexDanabeta
Inventor

James R. Bernhagen

Inventor
Cary, NC, US

Overview

4→
Patents
1982–2012
Patent span
Performing operations
Primary field (CPC B)

Patents· 4 as inventor

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

B23Fprimary
B23FMaking gears or toothed racks14%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for14%
B62DMotor vehicles14%
F16DCouplings for transmitting rotation14%
F16HGearing14%
G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves14%
Y10TTechnical subjects covered by former us classification14%
PatentTitleYear
8,195,365'Operator restraint system'20127,210,356'Physical agents directive dosimeter system'20074,700,794'Vehicle steering apparatus'19874,343,563'Tapered spline and method of manufacturing same'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982Patents assigned to CATERPILLAR TRACTOR CO (1)· patent assignee history
1982–1987Based in Eldridge, IA, US· patent location history
1987–2012Patents assigned to CATERPILLAR INC (3)· patent assignee history
2007–2012Based in Cary, NC, US· patent location history
2012Patents assigned to BERNHAGEN JAMES ROBERT (1)· patent assignee history
2012Patents assigned to EDWARDS DAVID JAMES (1)· patent assignee history
2012Patents assigned to ELLIOTT ROBERT QUINCY (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CATERPILLAR INC31987–2012
BERNHAGEN JAMES ROBERTself12012
CATERPILLAR TRACTOR CO11982
EDWARDS DAVID JAMES12012
ELLIOTT ROBERT QUINCY12012
Locations
LocationPatentsSpan
Cary, NC, US22007–2012
Eldridge, IA, US21982–1987