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Inventor

David C. Copley

Inventor
Peoria, IL, US

Overview

9→
Patents
1992–2021
Patent span
Physics
Primary field (CPC G)

Patents· 9 as inventor

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

G10Kprimary
G10KSound-producing devices36%
G01NInvestigating or analysing materials by determining their chemical or physical properties14%
E02FDredging7%
F01PCooling of machines or engines in general7%
F02BInternal-combustion piston engines7%
G01BMeasuring length, thickness or similar linear dimensions7%
G01SRadio direction-finding7%
G08BSignalling systems, e.g. personal calling systems7%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers7%
PatentTitleYear
10,982,586Distributed cooling system for a work machine20218,340,318'Methods and systems for measuring performance of a noise cancellation system'20128,068,616'Methods and systems for controlling noise cancellation'20117,933,420'Methods and systems for determining the effectiveness of active noise cancellation'20117,635,048'Sound suppression device for internal combustion engine system'20097,268,671'Shaped modulation audible alarm'20077,263,888'Two dimensional phased arrays for volumetric ultrasonic inspection and methods of use'20076,273,213'Noise suppression louver having horizontal and vertical slats'20015,119,678'Pulse echo and through transmission ultra-sound'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2007Patents assigned to GEN ELECTRIC (2)· patent assignee history
1992–2007Based in Loveland, OH, US· patent location history
2001–2021Patents assigned to CATERPILLAR INC (7)· patent assignee history
2001–2021Based in Peoria, IL, US· patent location history
2011–2012Patents assigned to COPLEY DAVID C (2)· patent assignee history
2011–2012Patents assigned to FABER BENJAMIN MAHONRI (2)· patent assignee history
2011–2012Patents assigned to SOMMERFELDT SCOTT D (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CATERPILLAR INC72001–2021
COPLEY DAVID Cself22011–2012
FABER BENJAMIN MAHONRI22011–2012
GEN ELECTRIC21992–2007
SOMMERFELDT SCOTT D22011–2012
Locations
LocationPatentsSpan
Peoria, Illinois, US72001–2021
Loveland, OH, US21992–2007