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Douglas C. Mathews
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Marlborough, CT, US
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Patents Grants
last 30 patents
Information
Patent Grant
Airfoil surface impedance modification for noise reduction in turbo...
Patent number
7,018,172
Issue date
Mar 28, 2006
United Technologies Corporation
Dilip Prasad
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Tabbed nozzle for jet noise suppression
Patent number
6,314,721
Issue date
Nov 13, 2001
United Technologies Corporation
Douglas C. Mathews
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Acoustically improved gas turbine blade array
Patent number
5,966,525
Issue date
Oct 12, 1999
United Technologies Corporation
Robert J. Manzi
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Sound absorbing structure for a gas turbine engine
Patent number
4,452,335
Issue date
Jun 5, 1984
United Technologies Corporation
Douglas C. Mathews
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Patents Applications
last 30 patents
Information
Patent Application
Airfoil surface impedance modification for noise reduction in turbo...
Publication number
20050135924
Publication date
Jun 23, 2005
Dilip Prasad
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES