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Charge dissipative surface coverings
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Patent number 5,091,452
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Issue date Feb 25, 1992
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Armstrong World Industries, Inc.
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Kenneth K. Ko
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Charge dissipative floor tiles
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Patent number 4,944,998
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Issue date Jul 31, 1990
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Armstrong World Industries, Inc.
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Kenneth K. Ko
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Charge dissipative floor tiles
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Patent number 4,826,912
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Issue date May 2, 1989
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Armstrong World Industries, Inc.
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Kenneth K. Ko
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Durable, low-maintenance flooring tile
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Patent number 4,504,523
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Issue date Mar 12, 1985
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Armstrong World Industries, Inc.
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Jesse D. Miller
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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Durable, low-maintenance flooring tile
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Patent number 4,418,109
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Issue date Nov 29, 1983
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Armstrong World Industries, Inc.
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Jesse D. Miller
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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