Charles G. Keith

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Plymouth, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Self-obstructing flammable fluid carrying conduit
- Patent number 10,914,392
- Issue date Feb 9, 2021
- Charles G. Keith
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Self-obstructing flammable fluid carrying conduit
- Patent number 10,094,484
- Issue date Oct 9, 2018
- Charles G. Keith
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Self-obstructing flammable fluid carrying conduit
- Patent number 9,470,327
- Issue date Oct 18, 2016
- Charles G. Keith
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
SELF-OBSTRUCTING FLAMMABLE FLUID CARRYING CONDUIT
- Publication number 20190309868
- Publication date Oct 10, 2019
- Charles G. Keith
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
THERMALLY ACTIVATED FLOW STOP VALVE
- Publication number 20190277420
- Publication date Sep 12, 2019
- Charles G. Keith
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
SELF-OBSTRUCTING FLAMMABLE FLUID CARRYING CONDUIT
- Publication number 20170130852
- Publication date May 11, 2017
- Charles G. Keith
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
SELF-OBSTRUCTING FLAMMABLE FLUID CARRYING CONDUIT
- Publication number 20140230918
- Publication date Aug 21, 2014
- Crane Engineering, Inc.
- Charles G. Keith
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC