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Karl M. Prewo
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Vernon, CT, US
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Patents Grants
last 30 patents
Information
Patent Grant
Hybrid monolithic ceramic and ceramic matrix composite airfoil and...
Patent number
6,696,144
Issue date
Feb 24, 2004
United Technologies Corporation
John E. Holowczak
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Tension member for an elevator
Patent number
6,672,046
Issue date
Jan 6, 2004
Otis Elevator Company
Karl M. Prewo
D07 - ROPES CABLES OTHER THAN ELECTRIC
Information
Patent Grant
Hybrid monolithic ceramic and ceramic matrix composite airfoil and...
Patent number
6,451,416
Issue date
Sep 17, 2002
United Technologies Corporation
John E. Holowczak
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Tension member for an elevator
Patent number
6,401,871
Issue date
Jun 11, 2002
Otis Elevator Company
Pedro S. Baranda
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator traction sheave liner
Patent number
6,390,242
Issue date
May 21, 2002
Otis Elevator Company
Pedro S. Baranda
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator traction sheave
Patent number
6,386,324
Issue date
May 14, 2002
Otis Elevator Company
Pedro S. Baranda
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Tension member for an elevator
Patent number
6,364,061
Issue date
Apr 2, 2002
Otis Elevator Company
Pedro S. Baranda
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Method and apparatus for peening the internal surface of a non-ferr...
Patent number
5,950,470
Issue date
Sep 14, 1999
United Technologies Corporation
Karl M. Prewo
B24 - GRINDING POLISHING
Information
Patent Grant
Lightweight scroll element and method of making
Patent number
5,478,219
Issue date
Dec 26, 1995
Carrier Corporation
Vincent C. Nardone
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Fiber reinforced glass matrix and glass-ceramic matrix composite ar...
Patent number
5,372,868
Issue date
Dec 13, 1994
United Technologies Corporation
Karl M. Prewo
E04 - BUILDING
Information
Patent Grant
Method of making hybrid composite structures of fiber reinforced gl...
Patent number
5,122,226
Issue date
Jun 16, 1992
United Technologies Corporation
Eric Minford
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Process for forming fiber reinforced composite articles
Patent number
5,116,398
Issue date
May 26, 1992
United Technologies Corporation
Karl M. Prewo
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Microstructurally toughened metal matrix composite article and meth...
Patent number
5,079,099
Issue date
Jan 7, 1992
United Technologies Corporation
Karl M. Prewo
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Structural joints of high dimensional stability
Patent number
5,015,116
Issue date
May 14, 1991
United Technologies Corporation
Vincent C. Nardone
B64 - AIRCRAFT AVIATION COSMONAUTICS
Information
Patent Grant
Microstructurally toughened metal matrix composite article
Patent number
4,999,256
Issue date
Mar 12, 1991
United Technologies Corporation
Karl M. Prewo
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Hybrid composite structures of fiber reinforced glass and resin mat...
Patent number
4,983,463
Issue date
Jan 8, 1991
United Technologies Corporation
Eric Minford
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Fiber reinforced composite article
Patent number
4,960,629
Issue date
Oct 2, 1990
United Technologies Corporation
David C. Jarmon
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Integral chopped fiber reinforced glass or glass-ceramic structures
Patent number
4,913,953
Issue date
Apr 3, 1990
United Technologies Corporation
Karl M. Prewo
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Microstructurally toughened metallic article and method of making same
Patent number
4,911,990
Issue date
Mar 27, 1990
United Technologies Corporation
Karl M. Prewo
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Microstructurally toughened metal matrix composite article and meth...
Patent number
4,885,212
Issue date
Dec 5, 1989
United Technologies Corporation
Karl M. Prewo
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Hybrid composite compressor
Patent number
4,870,827
Issue date
Oct 3, 1989
United Technologies
David J. McFarlin
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Oxidation resistant fiber reinforced composite article
Patent number
4,857,485
Issue date
Aug 15, 1989
United Technologies Corporation
John J. Brennan
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method for producing integral chopped fiber reinforced glass or gla...
Patent number
4,857,093
Issue date
Aug 15, 1989
United Technologies Corporation
Karl M. Prewo
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Rotor for a gas turbine engine
Patent number
4,808,076
Issue date
Feb 28, 1989
United Technologies Corporation
David C. Jarmon
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Microstructurally toughened metal matrix composite article and meth...
Patent number
4,808,485
Issue date
Feb 28, 1989
United Technologies Corporation
Karl M. Prewo
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Controlled fiber distribution technique for glass matrix composites
Patent number
4,780,432
Issue date
Oct 25, 1988
United Technologies Corporation
Eric Minford
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Silicon nitride whisker reinforced glass matrix composites
Patent number
4,766,096
Issue date
Aug 23, 1988
The United States of America as represented by the Secretary of the Air Force
George K. Layden
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Gas turbine engine and composite parts
Patent number
4,738,902
Issue date
Apr 19, 1988
United Technologies Corporation
Karl M. Prewo
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Alumina fiber reinforced lithium aluminosilicate
Patent number
H347
Issue date
Oct 6, 1987
The United States of America as represented by the Secretary of the Air Force
George K. Layden
428 - Stock material or miscellaneous articles
Information
Patent Grant
Method for forming fiber reinforced composite articles
Patent number
4,666,645
Issue date
May 19, 1987
United Technologies Corporation
Karl M. Prewo
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Patents Applications
last 30 patents
Information
Patent Application
Hybrid monolithic ceramic and ceramic matrix composite airfoil and...
Publication number
20020155269
Publication date
Oct 24, 2002
John E. Holowczak
B32 - LAYERED PRODUCTS
Information
Patent Application
TENSION MEMBER FOR AN ELEVATOR
Publication number
20020000346
Publication date
Jan 3, 2002
OTIS ELEVATOR COMPANY
PEDRO S. BARANDA
D07 - ROPES CABLES OTHER THAN ELECTRIC
Information
Patent Application
Tension member for an elevator
Publication number
20020000347
Publication date
Jan 3, 2002
Pedro S. Baranda
D07 - ROPES CABLES OTHER THAN ELECTRIC