James L. Oravitz Jr.

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Cheswick, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Vacuum insulating unit
- Patent number 5,124,185
- Issue date Jun 23, 1992
- PPG Industries, Inc.
- Thomas P. Kerr
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Method of imposing a damage free score in a refractory piece
- Patent number 4,423,835
- Issue date Jan 3, 1984
- PPG Industries, Inc.
- Charles J. Hyatt
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of and apparatus for preventing premature severing of scored...
- Patent number 4,196,830
- Issue date Apr 8, 1980
- PPG Industries, Inc.
- James L. Oravitz
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Oilless fluid for scoring glass
- Patent number 4,084,737
- Issue date Apr 18, 1978
- PPG Industries, Inc.
- Harold R. Gorman
- C03 - GLASS MINERAL OR SLAG WOOL