Duane Fetko

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Masontown, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Angle plate package having a single strap
- Patent number 10,589,911
- Issue date Mar 17, 2020
- Ductmate Industries, Inc.
- Douglas Gudenburr
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
High efficiency take-off fitting
- Patent number 10,436,369
- Issue date Oct 8, 2019
- Ductmate Industries, Inc.
- Alvin L. Jefferson
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Dual purpose dimple for HVAC circular ductwork
- Patent number 8,973,954
- Issue date Mar 10, 2015
- Ductmate Industries, Inc.
- Alvin Coughenour
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Dual purpose dimple for HVAC circular ductwork
- Patent number 8,429,803
- Issue date Apr 30, 2013
- Ductmate Industries, Inc.
- Alvin Coughenour
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Angle Plate Package Having a Single Strap
- Publication number 20190300250
- Publication date Oct 3, 2019
- Ductmate Industries, Inc.
- Douglas Gudenburr
- F24 - HEATING RANGES VENTILATING
Information Patent Application
High Efficiency Take-Off Fitting
- Publication number 20140049038
- Publication date Feb 20, 2014
- DUCTMATE INDUSTRIES, INC.
- Alvin L. Jefferson
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Residential Ductwork System
- Publication number 20140052417
- Publication date Feb 20, 2014
- DUCTMATE INDUSTRIES, INC.
- Douglas G. Gudenburr
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Dual Purpose Dimple for HVAC Circular Ductwork
- Publication number 20130221667
- Publication date Aug 29, 2013
- DUCTMATE INDUSTRIES, INC.
- Alvin Coughenour
- F24 - HEATING RANGES VENTILATING
Information Patent Application
HVAC Pipe Sealed Fittings
- Publication number 20110266791
- Publication date Nov 3, 2011
- Duane Fetko
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Dual Purpose Dimple for HVAC Circular Ductwork
- Publication number 20110042945
- Publication date Feb 24, 2011
- Alvin Coughenour
- F24 - HEATING RANGES VENTILATING