John J. Letcavits

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Hilliard, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Control system for reducing NOx emissions from a multiple-intertube...
- Patent number 6,659,026
- Issue date Dec 9, 2003
- AEP EmTech LLC
- Willis M. Hendricks
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Method and apparatus for reducing NO.sub.x emissions from a multipl...
- Patent number 6,155,183
- Issue date Dec 5, 2000
- A E P Resources Service Company
- Scott A. Vierstra
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Method and apparatus for reducing NO.sub.X emmissions from a multip...
- Patent number 5,960,723
- Issue date Oct 5, 1999
- AEP Resources Service Company
- Scott A. Vierstra
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Method and apparatus for reducing NO.sub.x emissions from a multipl...
- Patent number 5,771,823
- Issue date Jun 30, 1998
- AEP Resources Service Company
- Scott A. Vierstra
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES