Richard J. Johnson

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Baltimore, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Modular tile with positioning means for use with an access floor pa...
- Patent number 4,561,232
- Issue date Dec 31, 1985
- Tate Architectural Products, Inc.
- Robert S. Gladden
- E04 - BUILDING
Information Patent Grant
Structural member with truncated conical portion and composite pane...
- Patent number 4,411,121
- Issue date Oct 25, 1983
- Tate Architectural Products, Inc.
- Peter A. Blacklin
- E04 - BUILDING
Information Patent Grant
Structural member and composite panel including same
- Patent number 4,203,268
- Issue date May 20, 1980
- Tate Architectural Products, Inc.
- Robert S. Gladden
- E04 - BUILDING