Jack Hyde

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Interlocking checker brick mold
- Patent number 5,531,586
- Issue date Jul 2, 1996
- North American Refractories Company
- Jack Hyde
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Method of making interlocking checker bricks
- Patent number 5,474,726
- Issue date Dec 12, 1995
- North American Refractories Company
- Jack Hyde
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Interlocking checker bricks and method and apparatus for making
- Patent number 5,358,031
- Issue date Oct 25, 1994
- North American Refractories Company
- Jack Hyde
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Interlocking checker bricks
- Patent number 5,299,629
- Issue date Apr 5, 1994
- North American Refractories Company
- Jack Hyde
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Checker brick
- Patent number 4,940,081
- Issue date Jul 10, 1990
- North American Refractories Company
- Jack Hyde
- F28 - HEAT EXCHANGE IN GENERAL