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John Harold Ziemer
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Youngstown, NY, US
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last 30 patents
Information
Patent Grant
Cryogenic air separation system with dual section main heat exchanger
Patent number
6,568,209
Issue date
May 27, 2003
Praxair Technology, Inc.
John Harold Ziemer
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Cryogenic rectification method for producing nitrogen gas and liqui...
Patent number
6,125,656
Issue date
Oct 3, 2000
Praxair Technology, Inc.
Bayram Arman
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Downflow plate and fin heat exchanger for cryogenic rectification
Patent number
5,724,834
Issue date
Mar 10, 1998
Praxair Technology, Inc.
Vijayaraghavan Srinivasan
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Cryogenic rectification system with dual phase turboexpansion
Patent number
5,564,290
Issue date
Oct 15, 1996
Praxair Technology, Inc.
Dante P. Bonaquist
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Downflow plate and fin heat exchanger for cryogenic rectification
Patent number
5,537,840
Issue date
Jul 23, 1996
Praxair Technology, Inc.
Vijayaraghavan Srinivasan
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Downflow plate and fin heat exchanger for cryogenic rectification
Patent number
5,438,836
Issue date
Aug 8, 1995
Praxair Technology, Inc.
Vijayaraghavan Srinivasan
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Grant
Cryogenic rectification system with improved oxygen recovery
Patent number
5,163,296
Issue date
Nov 17, 1992
Praxair Technology, Inc.
John H. Ziemer
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Air separation process with improved reboiler liquid cleaning circuit
Patent number
4,957,524
Issue date
Sep 18, 1990
Union Carbide Corporation
Ravindra F. Pahade
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Double column multiple condenser-reboiler high pressure nitrogen pr...
Patent number
4,453,957
Issue date
Jun 12, 1984
Union Carbide Corporation
Ravindra F. Pahade
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Dual column high pressure nitrogen process
Patent number
4,439,220
Issue date
Mar 27, 1984
Union Carbide Corporation
Walter J. Olszewski
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Air boiling process to produce low purity oxygen
Patent number
4,410,343
Issue date
Oct 18, 1983
Union Carbide Corporation
John H. Ziemer
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Cryogenic system for producing low-purity oxygen
Patent number
4,224,045
Issue date
Sep 23, 1980
Union Carbide Corporation
Walter J. Olszewski
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...