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

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

Subterranean water collection and delivery device and system

Hydraulic and earth engineering – Drainage or irrigation

Sump assembly

Hydraulic and earth engineering – Drainage or irrigation

Surface drainage apparatus

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

Surface drainage culvert

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

Surface, subsurface, continuous feed moisture maintenance system

Hydraulic and earth engineering – Drainage or irrigation

Sustainable surface water disposal system

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

Synthetic materials for water drainage systems

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

System and method for cleaning a sewage field line from a septic

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

System and method for dispersing of coal bed sodic water

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

System and method for dispersing of coal bed sodic water

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

System and method for distribution of greywater to a soil bed

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

System and method for preventing bluff erosion

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

System and method for use of an extention basin as a storm...

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

System component, system and method for aerating of compost...

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

System for applying a liquid, such as a deicing liquid, upon...

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

System for construction of golf course sand bunkers

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

System for draining land areas through siphoning from a permeabl

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

System for draining land areas through siphoning from a permeabl

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

System for groundwater flow control