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Inventor

Steven Dallas Johnson

Inventor
Naperville, IL, US

Overview

8→
Patents
1998–2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 8 as inventor

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

F02Mprimary
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof24%
Y02TClimate change mitigation technologies related to transportation24%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general19%
F02BInternal-combustion piston engines10%
F02DControlling combustion engines10%
B61CLocomotives5%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact5%
Y10TTechnical subjects covered by former us classification5%
PatentTitleYear
10,746,138Hollow fin tube structure at inlet of EGR cooler202010,526,986Systems and methods for controlling EGR flow rate202010,082,114Exhaust gas recirculation system20189,845,722Engine system for emissions compliance20179,255,552'Engine system having dedicated donor cylinders for EGR'20169,163,586'Exhaust system having parallel EGR coolers'20159,080,496'Exhaust manifold for an engine and method for manufacture'20155,791,256'Axle sprung motor'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998Based in Lombard, IL, US· patent location history
2015–2017Patents assigned to ELECTRO MOTIVE DIESEL INC (3)· patent assignee history
2015Patents assigned to CADE MICHAEL JOHN (1)· patent assignee history
2015Patents assigned to DEMOTS ANTHONY BERNARD (1)· patent assignee history
2015Patents assigned to FORD GLOBAL TECH LLC (1)· patent assignee history
2015–2020Based in Naperville, IL, US· patent location history
2015Based in Brentwood, GB· patent location history
2018–2020Patents assigned to PROGRESS RAIL LOCOMOTIVE INC (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ELECTRO MOTIVE DIESEL INC32015–2017
PROGRESS RAIL LOCOMOTIVE INC32018–2020
CADE MICHAEL JOHN12015
DEMOTS ANTHONY BERNARD12015
FORD GLOBAL TECH LLC12015
Locations
LocationPatentsSpan
Naperville, Illinois, US62015–2020
Brentwood, GB12015
Lombard, Illinois, US11998