Class 299/9 - Material mined or excavated underwater

Subclass of Class 299 - Mining or in situ disintegration of hard material
Definition: Subject matter which the material is removed from a submerged
No. of applications: 3
Last issue date: 09/01/2011

Application No.	Application Title	Issue Date
20110210599	Method of Mining and Processing Seabed Sediment A method and apparatus for mining and processing seabed sediment comprising disturbing sediment at the seabed (3) to form a slurry; transporting the slurry to the surface via a production riser (6) and processing the slurry to dissociate hydrates and remov...	09/01/2011
20080197689	Non-motorized gold mining apparatus A non-motorized apparatus for collecting particulate materials, including gold, in stream placer deposits, comprising a first tubular member, a second tubular member, a third tubular member with perforated ridges, a skirt for enveloping the tubular members, and a fibrou...	08/21/2008
20070145810	Gas hydrate material recovery apparatus A gas hydrate material recovery apparatus utilizing a vessel which is positioned beneath a body of water and above the bed of the body of water. The vessel includes a holding tank with an entrance to capture solid natural gas hydrate crystals. An agitator located below ...	06/28/2007

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