David J. Leehaug

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Columbus, IN, US

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Patents Grantslast 30 patents

Information Patent Grant
Tube structure for exhaust component
- Patent number 8,025,121
- Issue date Sep 27, 2011
- EMCON Technologies LLC
- Joseph E. Callahan
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
TUBE STRUCTURE FOR EXHAUST COMPONENT
- Publication number 20100199651
- Publication date Aug 12, 2010
- Joseph E. Callahan
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Muffler and heat shield assembly
- Publication number 20060065480
- Publication date Mar 30, 2006
- David J. Leehaug
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES