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Karl U. Ingard
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Kittery Point, ME, US
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Patents Grants
last 30 patents
Information
Patent Grant
Acoustically inactive corrugated structure
Patent number
5,597,985
Issue date
Jan 28, 1997
E. I. Du Pont de Nemours and Company
Terrence A. Dear
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Fluid distribution system having noise reduction mechanism
Patent number
5,209,259
Issue date
May 11, 1993
E. I. Du Pont de Nemours and Company
Terrence A. Dear
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Silencer for gas induction and exhaust systems
Patent number
5,014,816
Issue date
May 14, 1991
E. I. Du Pont de Nemours and Company
Terrence A. Dear
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Sound reduction membrane
Patent number
4,832,147
Issue date
May 23, 1989
E. I. DuPont de Nemours and Company
Terrence A. Dear
E04 - BUILDING
Information
Patent Grant
Branch take-off and silencer for an air distribution system
Patent number
4,418,788
Issue date
Dec 6, 1983
Mitco Corporation
Dimiter Gorchev
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Low back pressure exhaust silencer for diesel locomotives
Patent number
4,360,075
Issue date
Nov 23, 1982
General Motors Corporation
Dwight A. Blaser
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Air distribution system
Patent number
4,319,521
Issue date
Mar 16, 1982
Mitco Corporation
Dimiter Gorchev
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Static pressure regain coupler for an air distribution system
Patent number
4,313,522
Issue date
Feb 2, 1982
Mitco Corporation
Dimiter Gorchev
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Air distribution system
Patent number
4,295,416
Issue date
Oct 20, 1981
Mitco Corporation
Dimiter Gorchev
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Branch take-off and silencer for an air distribution system
Patent number
4,182,430
Issue date
Jan 8, 1980
Mitco Corporation
Dimiter Gorchev
F24 - HEATING RANGES VENTILATING