Patents Assigned to RLC Technologies, L.L.C.
  • Ruminant feed composition and method of making
    Publication number: 20070231369
    Abstract: A nutrient or medicinal composition for administration to ruminants, which includes a core of one or more biologically active substances coated with a film of polyurethane, overcoated with an “intermediate” wax is disclosed. This polyurethane/wax coating is resistant to rumen conditions, but will release the biologically active substance(s) in the abomasum and subsequent digestive tract of the ruminant animal.
    Type: Application
    Filed: March 31, 2006
    Publication date: October 4, 2007
    Applicant: RLC Technologies, L.L.C.
    Inventor: Garrard Hargrove
  • Controlled release pesticidal composition and method of making
    Publication number: 20040105877
    Abstract: A granular controlled-release pesticide comprising “core” granules such as ammonium sulfate, an inner polymer membrane formed in situ on said granules of ammonium sulfate, an acephate pesticide applied to the inner polymer membrane on the core granules, and an outer controlled-release polyurethane membrane formed in situ on said pesticide to permit controlled release of the pesticide.
    Type: Application
    Filed: November 26, 2003
    Publication date: June 3, 2004
    Applicant: RLC Technologies, L.L.C.
    Inventors: Garrard L. Hargrove, John H. Detrick
  • Controlled-release pesticidal composition and method of making
    Patent number: 6682751
    Abstract: A granular controlled-release pesticide comprising “core” granules such as ammonium sulfate, an inner polymer membrane formed in situ on said granules of ammonium sulfate, an acephate pesticide applied to the inner polymer membrane on the core granules, and an outer controlled-release polyurethane membrane formed in situ on said pesticide to permit controlled release of the pesticide.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: January 27, 2004
    Assignee: RLC Technologies, L.L.C.
    Inventors: Garrard L. Hargrove, John H. Detrick
  • Machine system and process for producing attrition resistant slow release fertilizers
    Patent number: 6537611
    Abstract: A machine system and process for producing attrition resistant, controlled release fertilizer is described. In the process, a prewet solution is used to initially coat the plant nutrient to be coated followed by the separate application of the individual components used in the coating. The machine system provides an improved means for uniformly applying a single layer or multiple layers of polymer coatings to the plant nutrient.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: March 25, 2003
    Assignee: RLC Technologies, L.L.C.
    Inventors: John H. Detrick, Frederick T. Carney, Jr.
  • Polymer-sulfur-polymer coated fertilizers
    Patent number: 6338746
    Abstract: The present invention described a polymer coated fertilizer, such as urea, subsequently coated with a layer of sulfur and thereafter a further coating of polymer. Preferably, the polymer coatings are formed by the direct in situ co-polymerization of the components of the polymer on the fertilizer and on the sulfur coating. The compositions provide positive controlled release characteristics, are abrasion and impact resistant and are substantially more economical to produce than polymer coated fertilizers.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: January 15, 2002
    Assignee: RLC Technologies, L.L.C.
    Inventors: John H. Detrick, Garrard L. Hargrove
  • Machine system and process for producing attrition resistant slow release fertilizers
    Patent number: 5858094
    Abstract: A machine system and process for producing attrition resistant, controlled release fertilizer is described. In the process, a prewet solution is used to initially coat the plant nutrient to be coated followed by the separate application of the individual components used in the coating. The machine system provides an improved means for uniformly applying a single layer or multiple layers of polymer coatings to the plant nutrient.
    Type: Grant
    Filed: May 22, 1996
    Date of Patent: January 12, 1999
    Assignee: RLC Technologies, L.L.C.
    Inventors: John H. Detrick, Frederick T. Carney, Jr.
  • Process for producing improved sulfur-coated urea slow release fertilizers
    Patent number: 5599374
    Abstract: The present invention describes a sulfur-coated urea slow release granular fertilizer having a uniform, durable polymeric coating over the sulfur-coating. The polymer coating is formed by the direct in situ co-polymerization of diethylene glycol-triethanolamine polyol and a diisocyanate on the surface of the sulfur-coated urea granule. The polymeric coating provides improved impact resistance of the composite coated granule.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: February 4, 1997
    Assignee: RLC Technologies, L.L.C.
    Inventor: John H. Detrick
  • Machine system and process for producing attrition resistant slow release fertilizers
    Patent number: 5547486
    Abstract: A machine system and process for producing attrition resistant, controlled release fertilizer is described. In the process, a prewet solution is used to initially coat the plant nutrient to be coated followed by the separate application of the individual components used in the coating. The machine system provides an improved means for uniformly applying a single layer or multiple layers of polymer coatings to the plant nutrient.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: August 20, 1996
    Assignee: RLC Technologies, L.L.C.
    Inventors: John H. Detrick, Frederick T. Carney, Jr.