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Inventor

Jeffrey F. Birkel

Inventor
Pekin, IL, US

Overview

3→
Patents
1999–2011
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 3 as inventor

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

F16Hprimary
F16HGearing33%
Y10TTechnical subjects covered by former us classification33%
F02BInternal-combustion piston engines17%
Y02TClimate change mitigation technologies related to transportation17%
PatentTitleYear
7,942,074'Gearbox with synchronizing clutch'20117,793,562'Transmission and shift method'20105,925,857'Inverted cone tuned exhaust system'1999

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999Based in Peoria, IL, US· patent location history
2010Patents assigned to CATERPILLAR INC (1)· patent assignee history
2010–2011Based in Pekin, IL, US· patent location history
2011Patents assigned to TURNER POWERTRAIN SYTEMS LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CATERPILLAR INC12010
TURNER POWERTRAIN SYTEMS LTD12011
Locations
LocationPatentsSpan
Pekin, Illinois, US22010–2011
Peoria, Illinois, US11999