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Deltak Corporation
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Minneapolis, MN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Safety vent and deflector for a pressurized vessel
Patent number
5,415,198
Issue date
May 16, 1995
Deltak Corporation
Daniel S. Ewert
F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information
Patent Grant
Fluid jack for a heat exchanger
Patent number
5,219,150
Issue date
Jun 15, 1993
Deltak Corporation
Eugene S. Denysenko
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Boiler tube support
Patent number
5,136,985
Issue date
Aug 11, 1992
Deltak Corporation
Robert J. Krowech
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Heat exchanger with movable tube assemblies
Patent number
5,131,459
Issue date
Jul 21, 1992
Deltak Corporation
Guy T. Thompson
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Apparatus and method for soot cleaning in high-pressure heat exchan...
Patent number
4,421,067
Issue date
Dec 20, 1983
Deltak Corporation
Robert J. Krowech
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Heat recovery boiler for high pressure gas
Patent number
4,414,923
Issue date
Nov 15, 1983
Deltak Corporation
Denis G. Csathy
F22 - STEAM GENERATION
Information
Patent Grant
Waste heat boiler for abstraction of heat energy from gaseous efflu...
Patent number
4,188,916
Issue date
Feb 19, 1980
Deltak Corporation
Denis G. Csathy
F22 - STEAM GENERATION
Information
Patent Grant
Vertical firetube waste heat boiler
Patent number
RE30033
Issue date
Jun 19, 1979
Deltak Corporation
Denis G. Csathy
122 - Liquid heaters and vaporizers
Information
Patent Grant
Waste heat watertube boiler
Patent number
4,153,012
Issue date
May 8, 1979
Deltak Corporation
Denis G. Csathy
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Vertical firetube waste heat boiler
Patent number
3,976,033
Issue date
Aug 24, 1976
Deltak Corporation
Denis G. Csathy
F22 - STEAM GENERATION
Information
Patent Grant
Coal fired package boiler
Patent number
3,971,345
Issue date
Jul 27, 1976
Deltak Corporation
Denis G. Csathy
F22 - STEAM GENERATION
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
85063189 - DELTAK
Serial number
85063189
Registration number
3913785
Filing date
Jun 15, 2010
Deltak, L.L.C.
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
73335135 - VIDEO JOURNAL
Serial number
73335135
Registration number
1242621
Filing date
Nov 2, 1981
Deltak, Inc.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73302072 - THE MICROELECTRONICS EXPLOSION
Serial number
73302072
Registration number
1213056
Filing date
Mar 20, 1981
Deltak, Inc.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73033746 - MANAGEMENT CONTACT
Serial number
73033746
Registration number
1027361
Filing date
Oct 3, 1974
DELTAK, INC.
16 - Paper, cardboard and goods made from these materials, not included in other classes
Information
Trademark
73033678 - MANAGEMENT CONTACT
Serial number
73033678
Registration number
1016779
Filing date
Oct 3, 1974
DELTAK, INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73015090 - DC DELTAK CORPORATION
Serial number
73015090
Registration number
1026140
Filing date
Mar 6, 1974
DELTAK CORPORATION
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
73015089 - DC
Serial number
73015089
Registration number
1017375
Filing date
Mar 6, 1974
DELTAK CORPORATION
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information
Trademark
73014618 - CUSTOMER CONTACT
Serial number
73014618
Registration number
1019868
Filing date
Feb 28, 1974
DELTAK, INC.
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
72447361 - CUSTOMER CONTACT
Serial number
72447361
Registration number
989629
Filing date
Jan 31, 1973
DELTAK, INC.
16 - Paper, cardboard and goods made from these materials, not included in other classes
Information
Trademark
72390602 - DELTAK
Serial number
72390602
Registration number
942154
Filing date
Apr 29, 1971
DELTAK, INC.
41 - Education