Dennis A. Alvarez

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Euclid, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Ceiling grid with resilient centering tabs
- Patent number 6,523,314
- Issue date Feb 25, 2003
- USG Interiors, Inc.
- Paul D. LaLonde
- E04 - BUILDING
Information Patent Grant
Apparatus for producing cold roll-formed structures
- Patent number 4,969,346
- Issue date Nov 13, 1990
- USG Interiors, Inc.
- George F. Bosl
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Cold roll-formed structures and method and apparatus for producing...
- Patent number 4,881,355
- Issue date Nov 21, 1989
- USG Interiors, Inc.
- George F. Bosl
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Corner bead structure
- Patent number 4,876,837
- Issue date Oct 31, 1989
- USG Interiors, Inc.
- Patrick M. Kelly
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for producing cold roll-formed structures
- Patent number 4,770,018
- Issue date Sep 13, 1988
- Donn Incorporated
- George F. Bosl
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...