William T. Sigman

Person

Eden Township, Lancaster County, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Aminoplast/polyurethane wear layer for PVC support surface
- Patent number 5,643,677
- Issue date Jul 1, 1997
- Armstrong World Industries, Inc.
- Joseph P. Feifer
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Seam cleaning composition
- Patent number 5,248,443
- Issue date Sep 28, 1993
- Armstrong World Industries, Inc.
- Wendell A. Ehrhart
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Seam cleaning composition
- Patent number 5,198,142
- Issue date Mar 30, 1993
- Armstrong World Industries, Inc.
- Wendell A. Ehrhart
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Grant
Method for making stain and scratch resistant resilient surface cov...
- Patent number 4,855,165
- Issue date Aug 8, 1989
- Armstrong World Industries, Inc.
- Nicholas C. Bolgiano
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Stain and scratch resistant resilient surface coverings
- Patent number 4,781,987
- Issue date Nov 1, 1988
- Armstrong World Industries, Inc.
- Nicholas C. Bolgiano
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Process for providing improved radiation-curable surface coverings...
- Patent number 4,421,782
- Issue date Dec 20, 1983
- Armstrong World Industries, Inc.
- Nicholas C. Bolgiano
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Process for providing improved radiation-curable surface coverings...
- Patent number 4,420,499
- Issue date Dec 13, 1983
- Armstrong World Industries, Inc.
- Nicholas C. Bolgiano
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

William T. Sigman

Person

Patents Grantslast 30 patents

Aminoplast/polyurethane wear layer for PVC support surface

Seam cleaning composition

Seam cleaning composition

Method for making stain and scratch resistant resilient surface cov...

Stain and scratch resistant resilient surface coverings

Process for providing improved radiation-curable surface coverings...

Process for providing improved radiation-curable surface coverings...