Walter W. Wydra

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Itasca, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Anticorrosion separator for wood deck fasteners
- Patent number 7,257,930
- Issue date Aug 21, 2007
- W. R. Grace & Co.-Conn.
- Antonio J. Aldykiewicz, Jr.
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Waterproofing membrane having release sheet cutting system
- Patent number 6,235,365
- Issue date May 22, 2001
- W. R. Grace & Co.-Conn.
- Edwin C. Schaughency
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Concrete additive product and method of use
- Patent number 5,224,774
- Issue date Jul 6, 1993
- W. R. Grace & Co.-Conn.
- Stephen A. Valle
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method for modifying concrete properties
- Patent number 5,203,629
- Issue date Apr 20, 1993
- W. R. Grace & Co.-Conn.
- Stephen A. Valle
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
Anticorrosion separator for wood deck fasteners
- Publication number 20050126109
- Publication date Jun 16, 2005
- Antonio J. Aldykiewicz
- E04 - BUILDING