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Inventor

Douglas George Shafer

Inventor
Cincinnati, OH, US

Overview

3→
Patents
2003–2013
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.

H02Kprimary
H02KDynamo-electric machines25%
F01DNon-positive displacement machines or engines, e.g. steam turbines13%
F02CGas-turbine plants13%
F02KJet-propulsion plants13%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants13%
F23DBurners13%
F23RGenerating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers13%
PatentTitleYear
8,499,544'Turbogenerator with cooling system'20138,450,888'Integrated brushless starter/generator system'20136,571,559'Anti-carboning fuel-air mixer for a gas turbine engine combustor'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003–2013Patents assigned to GEN ELECTRIC (3)· patent assignee history
2003–2013Based in Cincinnati, OH, US· patent location history
2013Patents assigned to SHAFER DOUGLAS GEORGE (2)· patent assignee history
2013Patents assigned to RETTIG MARK GERARD (1)· patent assignee history
2013Patents assigned to TOOT PETER DAVID (1)· patent assignee history
2013Patents assigned to VANDERMOLEN ROBERT JOHN (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GEN ELECTRIC32003–2013
SHAFER DOUGLAS GEORGEself22013
RETTIG MARK GERARD12013
TOOT PETER DAVID12013
VANDERMOLEN ROBERT JOHN12013
Locations
LocationPatentsSpan
Cincinnati, OH, US32003–2013