Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method to reduce the rate of diffusion of slow-release materials through polymers and process for making drip irrigation devices with long-term control of root growth

Method to reduce the rate of diffusion of slow-release materials through polymers and process for making drip irrigation devices with long-term control of root growth

US Patent 6821928 · Granted Nov 23, 2004

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method to irrigate using hydrogels in the soil to draw water from the atmosphere2022
Rodent, worm and insect resistant irrigation pipe and method of manufacture2019
Weed control and root barrier2015
Weed control and root barrier2014
Prevention of bacterial adhesion irrigation conduits2012
Anti-syphon emitter2008
Process for minute dosing of gravity media filters2002
Process for manufacturing drip irrigation systems using plastic lamination/extru1997
Multi-layer drip irrigation conduit1994
Process for making low cost drip irrigation lines using plastic extrusion and fi1994
Pressure compensating drip irrigation system1991
Process for making drip irrigation lines1987