John J. Beffano

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
High pressure globe and check valve
- Patent number 4,356,996
- Issue date Nov 2, 1982
- Quality Valve & Machine Works, Inc.
- Morris B. Linder
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Flow control mechanism for high pressure wells
- Patent number 4,356,997
- Issue date Nov 2, 1982
- Quality Valve & Machine Works, Inc.
- John J. Beffano
- E21 - EARTH DRILLING MINING
Information Patent Grant
Swivel joint construction for pressure containing conduit
- Patent number 4,354,698
- Issue date Oct 19, 1982
- Quality Valve & Machine Works, Inc.
- Morris B. Linder
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...