Robert W. O'Quinn

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Johnson City, TN, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for providing aging effect for brick
- Patent number 6,793,476
- Issue date Sep 21, 2004
- General Shale Products LLC
- James G. Bryja
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for providing aging effect for brick
- Publication number 20040164455
- Publication date Aug 26, 2004
- General Shale Products LLC
- James G. Bryja
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
Method and apparatus for providing aging effect for brick
- Publication number 20030102598
- Publication date Jun 5, 2003
- James G. Bryja
- B28 - WORKING CEMENT, CLAY, OR STONE