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Merritt J. Hummel
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Lower Burrell, PA, US
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last 30 patents
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Patent Grant
Heated lance roof cleaning process
Patent number
4,253,860
Issue date
Mar 3, 1981
PPG Industries, Inc.
Merritt J. Hummel
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Reducing tin drip with sulfur containing gas
Patent number
4,236,906
Issue date
Dec 2, 1980
PPG Industries, Inc.
Merritt J. Hummel
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of stain-decorating glass-ceramics
Patent number
4,197,105
Issue date
Apr 8, 1980
PPG Industries, Inc.
Merritt J. Hummel
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method for improving the quality of flat glass formed on a bath of...
Patent number
3,954,432
Issue date
May 4, 1976
PPG Industries, Inc.
Merritt J. Hummel
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of making crystallized glass
Patent number
3,938,978
Issue date
Feb 17, 1976
PPG Industries, Inc.
Merritt J. Hummel
C03 - GLASS MINERAL OR SLAG WOOL