Roberts Group Holdings, LLC

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San Diego, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for splicing drip irrigation tape
- Patent number 6,632,306
- Issue date Oct 14, 2003
- Roberts Group Holdings, LLC
- John C. Roberts
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Spray device for irrigation
- Patent number 6,588,680
- Issue date Jul 8, 2003
- Roberts Group Holdings LLC
- Scott G. Cameron
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Drip irrigation tape with indicia
- Patent number 6,460,786
- Issue date Oct 8, 2002
- Roberts Group Holdings LLC
- James C. Roberts
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Flow channel for drip irrigation with central cavity
- Patent number D455055
- Issue date Apr 2, 2002
- Roberts Groups Holdings, LLC
- John C. Roberts
- D08 - Tools and hardware
Information Patent Grant
Flow channel for drip irrigation with biased cavity
- Patent number D450550
- Issue date Nov 20, 2001
- Roberts Group Holdings, LLC
- John C. Roberts
- D08 - Tools and hardware

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