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Inventor

Donald R. Dougan

Inventor
North Canton, OH, US

Overview

7→
Patents
1984–2018
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 7 as inventor

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

B02Cprimary
B02CCrushing, pulverising, or disintegrating in general17%
F01DNon-positive displacement machines or engines, e.g. steam turbines11%
F04DNon-positive-displacement pumps11%
Y02TClimate change mitigation technologies related to transportation11%
B04BCentrifuges6%
F02CGas-turbine plants6%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants6%
F16CShafts6%
F23DBurners6%
F23GCremation furnaces6%
PatentTitleYear
10,030,533Flanged bushing for variable vane20189,528,391'Gas turbine engine outer case with contoured bleed boss'20165,884,776'Dynamic classifier with hollow shaft drive motor'19995,098,026'Easy access pop off relief valve'19924,721,258'Roll-and-race pulverizer with rotating throat'19884,687,145'Roll-and-race pulverizer with rotating throat'19874,448,135'Inline air-coal separator'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1999Patents assigned to BABCOCK & WILCOX CO (5)· patent assignee history
1984–1988Based in North Canton, OH, US· patent location history
1992–1999Based in Canton, OH, US· patent location history
2016–2018Patents assigned to UNITED TECHNOLOGIES CORP (2)· patent assignee history
2016Patents assigned to CARMINATI DANIEL (1)· patent assignee history
2016Patents assigned to DOUGAN JR DONALD (1)· patent assignee history
2016Patents assigned to WANG CHENG-ZHANG (1)· patent assignee history
2016–2018Based in Wallingford, CT, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BABCOCK & WILCOX CO51984–1999
UNITED TECHNOLOGIES CORP22016–2018
CARMINATI DANIEL12016
DOUGAN JR DONALDself12016
WANG CHENG-ZHANG12016
Locations
LocationPatentsSpan
North Canton, OH, US31984–1988
Wallingford, CT, US22016–2018
Canton, OH, US21992–1999