LandOfFree - US Patents - Listing for Hydraulic and earth engineering

Hydraulic and earth engineering – Subterranean waste disposal – containment – or treatment – With treatment of waste

Machine and method for laying film on face of landfill

Hydraulic and earth engineering – Earth treatment or control – Chemical

Machine for and method of hardening soft ground

Hydraulic and earth engineering – Earth treatment or control – Chemical

Machine for and method of hardening soft ground in depths

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...

Machine for digging a trench beneath a submerged pipeline

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...

Machine for installing drip irrigation conduit

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...

Machine for laying conduct and methods for use thereof

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...

Machine for laying conduit and methods for use thereof

Hydraulic and earth engineering – Foundation – Columnar structure

Machine for making bored piles

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...

Machine for making grooves in the ground

Hydraulic and earth engineering – Earth treatment or control – Chemical

Machine for paving a canal bottom

Hydraulic and earth engineering – Drainage or irrigation

Machine for use in implanting plant supporting stakes

Hydraulic and earth engineering – Miscellaneous

Machines for positioning roof supports in a tunnel

Hydraulic and earth engineering – Temperature modification or control of earthen formation – Heating

Magma evacuation systems for the prevention of explosions...

Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention

Magnetic shoring device

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – With protection or indication of pipe or trench

Magnetically detectable plastic pipe

Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention

Maintaining the shape of holes

Hydraulic and earth engineering – Fluid control – treatment – or containment – Fluid storage in earthen cavity

Maintenance apparatuses for permeability improvement in...

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...

Making subsea pipelines ready for electrical heating

Hydraulic and earth engineering – Marine structure or fabrication thereof – With anchoring of structure to marine floor

Man portable shallow water structure