Radial gate having fine tuning of flow control
Rain gutter
Rain gutter joint
Rain gutter shield having a porous, non-woven polymeric fiber sc
Rain water roof outlet or similar for a building
Rain water roof outlet or similar for a building
Raingutter leaf guard and cleaning device
Rainwater saver system
Rapid emergency dam and method of construction
RCC dam construction and method
Reconfigurable barrier system
Reconfigurable barrier system
Rectilinear culvert structure
Redeployable high temperature oil boom
Reducing leakage through sandbag dikes using a bentonite or othe
Reel mountable boom apparatus
Reel mountable boom arrangement
Reflecting wave generator apparatus and method
Reinforced composite material
Reinforced metal box culvert