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Ralph E. Ayres
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Midland, MI, US
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last 30 patents
Information
Patent Grant
Method and apparatus for producing multilayer plastic articles
Patent number
5,628,950
Issue date
May 13, 1997
The Dow Chemical Company
Walter J. Schrenk
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method for producing blow molded multilayer plastic articles
Patent number
5,540,878
Issue date
Jul 30, 1996
The Dow Chemical Company
Walter J. Schrenk
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method and apparatus for producing multilayer plastic articles
Patent number
5,380,479
Issue date
Jan 10, 1995
The Dow Chemical Company
Walter J. Schrenk
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method for producing injection molded multilayer articles
Patent number
5,202,074
Issue date
Apr 13, 1993
The Dow Chemical Company
Walter J. Schrenk
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Methods and apparatus for generating interfacial surfaces
Patent number
5,094,793
Issue date
Mar 10, 1992
The Dow Chemical Company
Walter J. Schrenk
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Scrapless forming of plastic articles
Patent number
4,005,967
Issue date
Feb 1, 1977
The Dow Chemical Company
Ralph E. Ayres
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Biaxially oriented thermoplastic container with or without molded t...
Patent number
3,995,763
Issue date
Dec 7, 1976
The Dow Chemical Company
Ralph E. Ayres
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Scrapless forming of plastic articles
Patent number
3,947,204
Issue date
Mar 30, 1976
The Dow Chemical Company
Ralph E. Ayres
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL