LandOfFree - US Patents - Listing for Mining or in situ disintegration of hard material,Processes

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Hydraulic method of mining coal

Mining or in situ disintegration of hard material – Processes

Patent

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Hydraulic mining and transportation of coal using hot oil under

Mining or in situ disintegration of hard material – Processes – Directly applying heat or vibration

Patent

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Hydraulic mining apparatus and method

Mining or in situ disintegration of hard material – Processes – Breaking down by direct contact with fluid

Patent

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Hydraulic mining method

Mining or in situ disintegration of hard material – Processes – Breaking down by direct contact with fluid

Patent

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Hydraulic scroll auger mining system and method of using the...

Mining or in situ disintegration of hard material – Processes – Breaking down by direct contact with fluid

Reexamination Certificate

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Hydrovac excavating blast wand

Mining or in situ disintegration of hard material – Processes – Breaking down by direct contact with fluid

Reexamination Certificate

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Impact kerfing rock cutter and method

Mining or in situ disintegration of hard material – Processes

Patent

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In-situ coal drying

Mining or in situ disintegration of hard material – Processes – Directly applying heat or vibration

Patent

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Inclined surface mining method

Mining or in situ disintegration of hard material – Processes – With material-handling

Patent

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Inertization system for highwall mining

Mining or in situ disintegration of hard material – Processes – Mine safety

Patent

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Inertization system for highwall mining

Mining or in situ disintegration of hard material – Processes – Mine safety

Patent

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Inflatable envelope systems for use in excavations

Mining or in situ disintegration of hard material – Processes – Forming blocks

Patent

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Inflatable envelope systems for use in excavations

Mining or in situ disintegration of hard material – Processes – Forming blocks

Patent

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Life protector enclosure for mines

Mining or in situ disintegration of hard material – Processes – Forming blocks

Patent

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Longwall mining apparatus for working thick seams

Mining or in situ disintegration of hard material – Processes – With material-handling

Patent

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Longwall mining of thick underground mineral seams

Mining or in situ disintegration of hard material – Processes – Stabilizing underground structure

Patent

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Longwall mining of trona with prefracturing to prevent slabbing

Mining or in situ disintegration of hard material – Processes – Stabilizing underground structure

Patent

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Longwall mining system

Mining or in situ disintegration of hard material – Processes – Stabilizing underground structure

Patent

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Longwall mining with blasting

Mining or in situ disintegration of hard material – Processes – Explosive

Reexamination Certificate

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Longwall mining with chain pillar recovery

Mining or in situ disintegration of hard material – Processes – Stabilizing underground structure

Patent

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