LandOfFree - US Patents - Listing for Hydraulic and earth engineering,Drainage or irrigation,Porous or apertured pipe, flume, or tileway

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

Insulated waterproof drainage material

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

Internally reinforced extruded plastic pipe

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

Invert elevation-change adapter

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

Irrigation and drainage method and apparatus

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

Irrigation apparatus including pulsators

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

Irrigation means and method

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

Irrigation pipe

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

Irrigation pipe

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

Irrigation system and associated methods

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

Irrigation tubing

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

Irrigation tubing with improved discharge holes

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

Latch for leaching chamber

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

Layered foundation for play surface

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

Leaching chamber

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

Leaching chamber

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

Leaching chamber

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

Leaching chamber endplate

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

Leaching chamber having a diagonally ribbed top

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

Leaching chamber having dosing pipe hanger