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

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

Head control stand

Hydraulic and earth engineering – Drainage or irrigation

High capacity catch basin filtration system with adjustable...

Hydraulic and earth engineering – Drainage or irrigation – Porous waterway – e.g. – sand drain – etc.

High-flow void-maintaining membrane laminates, grids and...

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

Highway edgedrain

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

Hillslope landslide stability drain

Hydraulic and earth engineering – Drainage or irrigation – Control means responsive to sensed condition

Horizontal dewatering system

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

Horizontal dewatering system

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

Horizontally draining artificial turf system

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

Hose conduits for drip- or trickle emission

Hydraulic and earth engineering – Drainage or irrigation

Hydraulic oscillating diverter

Hydraulic and earth engineering – Drainage or irrigation – Control means responsive to sensed condition

Hydraulic timer mechanism for water irrigation

Hydraulic and earth engineering – Drainage or irrigation

Hydrophobic material used for drainage of culvert