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David Emerson Maust
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Grantsville, MD, US
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Patents Grants
last 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 Applications
last 30 patents
Information
Patent Application
Refuge Shelter, Coupling and Method
Publication number
20240410281
Publication date
Dec 12, 2024
STRATA PRODUCTS WORLDWIDE, LLC
David Emerson Maust
E04 - BUILDING
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