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Patents Grantslast 30 patents

Information Patent Grant
Plurality of tubular heat exchanger modules
- Patent number 4,548,261
- Issue date Oct 22, 1985
- The Air Preheater Company, Inc.
- Michael A. Case
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
3387836
- Patent number 3,387,836
- Issue date Jun 11, 1968
- C21 - METALLURGY OF IRON
Information Patent Grant
3250319
- Patent number 3,250,319
- Issue date May 10, 1966
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
3220713
- Patent number 3,220,713
- Issue date Nov 30, 1965
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
3129931
- Patent number 3,129,931
- Issue date Apr 21, 1964
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
2580715
- Patent number 2,580,715
- Issue date Jan 1, 1952
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
2357156
- Patent number 2,357,156
- Issue date Aug 29, 1944
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
1793527
- Patent number 1,793,527
- Issue date Feb 24, 1931
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
464159
- Patent number 464,159
- Issue date Dec 1, 1891
- F28 - HEAT EXCHANGE IN GENERAL