John G. Duffield

Follow

Person

Flowery Branch, GA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Fire stop system
- Patent number 9,220,932
- Issue date Dec 29, 2015
- Panduit Corp.
- Gary L. Zernach
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Fire stop system
- Patent number 8,833,478
- Issue date Sep 16, 2014
- Panduit Corp.
- Gary L. Zernach
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Fire Stop System
- Publication number 20140367127
- Publication date Dec 18, 2014
- Panduit Corp.
- Gary L. Zernach
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
FIRE STOP SYSTEM
- Publication number 20120012347
- Publication date Jan 19, 2012
- Panduit Corp.
- Gary L. Zernach
- A62 - LIFE-SAVING FIRE-FIGHTING