LandOfFree - US Patents - Listing for Hydraulic and earth engineering,Drainage or irrigation

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Recreational area construction

Hydraulic and earth engineering – Drainage or irrigation – Including subsurface moisture barrier

Patent

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Recreational area construction

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Reformation of soft soil and system therefor

Hydraulic and earth engineering – Drainage or irrigation

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Reinforced structural elements

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Reservoir drainage system

Hydraulic and earth engineering – Drainage or irrigation – Branched flow

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Retrievable filter element for subsurface drainage

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Reversible interlocking field drain panel

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Patent

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Riser assembly for a sub-surface irrigation and drainage system

Hydraulic and earth engineering – Drainage or irrigation – Having regulation of flow through channel

Patent

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Roadway surface grating with trash detention during drier...

Hydraulic and earth engineering – Drainage or irrigation – Having regulation of flow through channel

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Root nutrient delivery system

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Runoff water diverter

Hydraulic and earth engineering – Drainage or irrigation

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

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