William C. Welch

Follow

Person

Lancaster, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Ceramic veneer composite structure
- Patent number 5,437,898
- Issue date Aug 1, 1995
- Armstrong World Industries, Inc.
- John S. Forry
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method of applying a ceramic image to a complex ceramic article
- Patent number 5,418,041
- Issue date May 23, 1995
- Armstrong World Industries, Inc.
- Raymond C. Kent
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Ceramic veneer composite structure
- Patent number 5,411,791
- Issue date May 2, 1995
- Armstrong World Industries, Inc.
- John S. Forry
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES