David Emerson Maust

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Grantsville, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Refuge shelter, coupling and method
- Patent number 12,071,852
- Issue date Aug 27, 2024
- Strata Products Worldwide, LLC
- David Emerson Maust
- E04 - BUILDING
Information Patent Grant
Refuge shelter, coupler and method
- Patent number 10,890,069
- Issue date Jan 12, 2021
- Strata Products Worldwide, LLC
- David Emerson Maust
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
Refuge Shelter, Coupling and Method
- Publication number 20170275995
- Publication date Sep 28, 2017
- STRATA PRODUCTS WORLDWIDE, LLC
- David Emerson Maust
- E04 - BUILDING
Information Patent Application
Change Over Station and Method
- Publication number 20140349562
- Publication date Nov 27, 2014
- STRATA PRODUCTS WORLDWIDE, LLC
- David Emerson Maust
- E21 - EARTH DRILLING MINING
Information Patent Application
Refuge Shelter, Coupler and Method
- Publication number 20140300174
- Publication date Oct 9, 2014
- STRATA PRODUCTS WORLDWIDE, LLC
- David Emerson Maust
- E04 - BUILDING
Information Patent Application
Air Conditioner for Refuge Shelter, System and Method
- Publication number 20140000299
- Publication date Jan 2, 2014
- STRATA PRODUCTS WORLDWIDE, LLC
- David Emerson Maust
- F24 - HEATING RANGES VENTILATING