Thomas A. Lehtinen

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St. Charles, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of making cellulosic composite articles
- Patent number 6,030,562
- Issue date Feb 29, 2000
- Masonite Corporation
- Thomas A. Lehtinen
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information Patent Grant
Non-leachable fire retardant comprising an alkaline condensation pr...
- Patent number 5,432,247
- Issue date Jul 11, 1995
- Masonite Corporation
- Chun Y. Lo
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Non-leachable fire retardant
- Patent number 5,143,989
- Issue date Sep 1, 1992
- Masonite Corporation
- Chun Y. Lo
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...