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Inventor

Stephen C. DuVal

Inventor
Tournan en Brie, FR

Overview

2→
Patents
1998–2021
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 2 as inventor

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

F01Dprimary
F01DNon-positive displacement machines or engines, e.g. steam turbines33%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants33%
H04MTelephonic communication33%
PatentTitleYear
10,920,609Turbine engine turbine assembly20215,818,836'Method and apparatus for anonymous voice communication using an online data service'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998Based in Iverness, IL, US· patent location history
2021Patents assigned to SAFRAN AIRCRAFT ENGINES (1)· patent assignee history
2021Based in Tournan en Brie, FR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SAFRAN AIRCRAFT ENGINES12021
Locations
LocationPatentsSpan
Tournan en Brie, FR12021
Iverness, Illinois, US11998