Warren Lehan

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Clearwater, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for manufacture of improved structural panel
- Patent number 6,638,393
- Issue date Oct 28, 2003
- Enviro-Ply International, Inc.
- Warren Lehan
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method for manufacture of improved structural panel
- Patent number 6,596,214
- Issue date Jul 22, 2003
- Enviro-Ply International, Inc.
- Warren Lehan
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Synthetic structural panel and method for manufacture
- Patent number 6,316,087
- Issue date Nov 13, 2001
- Warren Lehan
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Structural panel incorporating clay grog and vermiculite and method...
- Patent number 4,868,039
- Issue date Sep 19, 1989
- Warren A. Lehan
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
Method for manufacture of improved structural panel
- Publication number 20020104282
- Publication date Aug 8, 2002
- Warren Lehan
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
Apparatus for manufacture of improved structural panel
- Publication number 20020104601
- Publication date Aug 8, 2002
- Warren Lehan
- B28 - WORKING CEMENT, CLAY, OR STONE