Featured patents

Easy-To-Build Modular Steel Storm Shelter
US 08776453 B1, July 15, 2014, Phil Fain
An enclosed storm shelter made from steel components having two end walls, two…

Elliptical-Shaped Storm Shelters
US 08661746 B1, March 4, 2014, Wesley Kouba
A shelter, comprising:…

In-Ground Shelter
US 08646225 B2, Feb. 11, 2014, Jerry Wirtz
An underground shelter having a front wall, a back wall, two opposing side walls…

In-Ground Storm Shelter
US 08511005 B2, Aug. 20, 2013, Richard Crow / Ground Zero Shelters, Co. (Ponca City, US)
An in-ground storm shelter comprised of a sliding door, a bottom, a left side…

Pre-Cast Polygonal Shelter
US 08683759 B2, April 1, 2014, Lane Lythgoe
A pre-cast housing shelter unit comprises:…

Upper Part for a Shaft
US 08656654 B2, Feb. 25, 2014, Manfred Klausberger et al. / IFW Manfred Otte GmbH (Micheldorf, AT)
A shaft arrangement, comprising:…

Patentorg has 6 documents under Subterranean Enclosure With Portal Opening; e.g., Storm or Root Cellar, Bomb Shelter Patents.

Other subcategories for category Static structures (e.g., buildings)
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