Dave A. Lehr

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Franklin, TN, US

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Patents Grantslast 30 patents

Information Patent Grant
Electric arc furnace monitoring system and method
- Patent number 7,991,039
- Issue date Aug 2, 2011
- GrafTech International Holdings Inc.
- Ronald E. Gerhan
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Lifting apparatus and method of lifting carbon based electrodes
- Patent number 7,660,337
- Issue date Feb 9, 2010
- GrafTech International Holdings Inc.
- Henry Darral Teeples
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Lifting Apparatus and Method of Lifting Carbon Based Electrodes
- Publication number 20080084909
- Publication date Apr 10, 2008
- Henry Darral Teeples
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Cushioned Lifting Apparatus and Method of Lifting Carbon Based Elec...
- Publication number 20080084907
- Publication date Apr 10, 2008
- David Arthur Lehr
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Electric arc furnace monitoring system and method
- Publication number 20060114963
- Publication date Jun 1, 2006
- Ronald E. Gerhan
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...