Controlled Release Patents (Class 71/64.11)
  • Patent number: 11881325
    Abstract: Various embodiments of a nuclear radiation particle power converter and method of forming such power converter are disclosed. In one or more embodiments, the power converter can include first and second electrodes, a three-dimensional current collector disposed between the first and second electrodes and electrically coupled to the first electrode, and a charge carrier separator disposed on at least a portion of a surface of the three-dimensional current collector. The power converter can also include a hole conductor layer disposed on at least a portion of the charge carrier separator and electrically coupled to the second electrode, and nuclear radiation-emitting material disposed such that at least one nuclear radiation particle emitted by the nuclear radiation-emitting material is incident upon the charge carrier separator.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: January 23, 2024
    Assignee: Medtronic, Inc.
    Inventors: Andreas Fenner, David A. Ruben, Anna J. Malin, Paul F. Gerrish, Bruce C. Fleischhauer, Larry E. Tyler
  • Patent number: 11547118
    Abstract: Methods of fabricating a natural substance may include obtaining a particulate silica including perlite, preparing a liquid formula having at least one essential oil and preparing the natural substance by applying the liquid formula to the particulate silica.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: January 10, 2023
    Inventors: Elbert Lawrence, Ronald D. Guthrie, Richard L. Fewell, Jr.
  • Patent number: 11518681
    Abstract: The present disclosure provides a system and method for granulating and molding silicon liquid. The system includes a silicon liquid transferring device, wherein cooling system and a lifting system matching with the cooling system are provided below the silicon liquid transferring device. The silicon liquid transferring device transfers smelted silicon liquid to a position above the cooling system, uniformly pours the silicon liquid into the cooling system according a set flow to enable the silicon liquid to be solidified into silicon pellets, and then the molded silicon pellets are extracted by the lifting system, solving the problem in the prior art of irregular molding and inconsistent size of silicon blocks caused by pouring. A container bottom and a diversion pipe are set to be of detachable structures, and can be quickly disassembled and assembled as vulnerable parts without affecting the production.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: December 6, 2022
    Assignee: ChengDu Silicon Technology Co., Ltd.
    Inventors: Shi Yang, Xu Zhou
  • Patent number: 11465946
    Abstract: The invention relates to a water dispersible granular composition comprising 1% to 70% of one or more of iron salts, complexes, derivatives, mixtures thereof, 1% to 90% of elemental sulphur, and 1-30% of at least one dispersing agent; wherein the granules are in the size range of 0.1-2.5 mm and comprises particles in the size range of 0.1-20 microns. The invention further relates to a liquid suspension composition comprising 1% to 55% of at least one or more of iron salts, complexes, derivatives, mixtures thereof and 1% to 60% elemental sulphur, 0.01-5% of at least one structuring agent and at least one agrochemically acceptable excipient; wherein the composition comprises particles in the size range of 0.1-20 microns. The invention further relates to a process of preparing the composition and to a method of treating the plants, seeds, crops, plant propagation material, locus, parts thereof or the soil with the composition.
    Type: Grant
    Filed: May 4, 2019
    Date of Patent: October 11, 2022
    Inventors: Arun Vitthal Sawant, Thankapan Vadakekuttu
  • Patent number: 11440856
    Abstract: A controlled-release fertilizer composition includes coated fertilizer particles having granules substantially encapsulated with a polyurethane coating layer formed from a polyol composition and an isocyanate curing agent. The polyurethane coating layers include inorganic particles. Methods of making and using the controlled-release fertilizer compositions are also disclosed.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: September 13, 2022
    Assignee: OMS Investments, Inc.
    Inventors: Kwame Owusu-Adom, Christian Baldwin
  • Patent number: 11427514
    Abstract: The present invention relates to a controlled-release fertilizer, including: a photodegradable capsule including a binder resin containing a polyolefin and an ethylene vinyl acetate copolymer, and a photocatalytic composite in which a (co)polymer including at least one repeating unit selected from the group consisting of an ethylene repeating unit and a vinyl acetate repeating unit is bonded to the surface or inside of agglomerates of inorganic fine particles; and a fertilizer contained in a space surrounded by the photodegradable capsule.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: August 30, 2022
    Assignees: LG CHEM, LTD., FARMHANNONG CO., LTD.
    Inventors: Chanjoong Kim, Joon Seok Lee, Yil Jang, Sangryeo Lee, Ji Yeon Kim, Jae Hoon Choe
  • Patent number: 11377395
    Abstract: The present invention relates to a controlled-release type fertilizer with remarkably decreased floating property, comprising a granular fertilizer core; a coating layer (shell) formed on the surface of the granular fertilizer core, and comprising olefin-based resin; and additives attached on the coating layer, and comprising polyoxyethylene alkyl(-aryl)ether.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: July 5, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Mihee Kim, Hyo Sook Joo, Eun Kyoung Park, Hyeon Choi, Ki Youl Yoon, Joon Seok Lee
  • Patent number: 11370719
    Abstract: The present invention relates to a controlled-release type fertilizer with outstandingly decreased floating property, comprising a granular fertilize core; a coating layer (shell) formed on the surface of the granular fertilizer core, and comprising olefin-based resin; and additives attached on the coating layer, and comprising ethylene oxide-propylene oxide-ethylene oxide(EO-PO-EO) or propylene oxide-ethylene oxide-propylene oxide(PO-EO-PO) tri-block copolymer.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: June 28, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Mihee Kim, Hyosook Joo, Eun Kyoung Park, Hyeon Choi, Kiyoul Yoon, Joon Seok Lee
  • Patent number: 11332413
    Abstract: The present disclosure relates to a controlled-release fertilizer and, more particularly, to a controlled-release fertilizer including: a photodegradable capsule including a binder resin containing a polyolefin and an ethylene vinyl acetate copolymer; and a photocatalytic composite in which a (meth)acrylate compound containing an alkylene glycol repeating unit having 1 to 10 carbon atoms is bonded to the surface or inside of aggregates of inorganic fine particles, and a fertilizer contained in a space surrounded by the photodegradable capsule.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: May 17, 2022
    Assignees: LG Chem, Ltd., Farmhannong Co., Ltd.
    Inventors: Chanjoong Kim, Sangryeo Lee, Joon Seok Lee, Yil Jang, Ji Yeon Kim, Jae Hoon Choe
  • Patent number: 10202314
    Abstract: A controlled release fertilizer material comprising a particulate plant nutrient surrounded by at least one coating comprising the reaction product of a mixture comprising a polyol, an isocyanate, a wax and an epoxidized fatty acid triglyceride oil.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: February 12, 2019
    Assignee: Agrium, Inc.
    Inventors: Baozhong Xing, Leslie L. Carstens, Nick P. Wynnyk
  • Patent number: 9321699
    Abstract: An oil-based coating for fertilizer granules impregnated with a polymer additive and related methods of applying the oil-based coating. The polymer additive can comprise homopolymers, copolymers, or combinations thereof, including polyethylene homopolymers. The polymer additive increases the viscosity of the oil-based coating, thereby increasing the duration for which the coating is capable of controlling or inhibiting the formation of dust particulates from the fertilizer granules.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: April 26, 2016
    Assignee: The Mosaic Company
    Inventors: Lawrence Alan Peacock, Timothy Gene Holt, Keith Dewayne Cochran
  • Patent number: 9012363
    Abstract: A granular agrochemical composition is disclosed including a granular core material having a water soluble portion with a first coating layer applied on the surface of the core material and a second coating layer applied on the surface of the first coating layer. The first coating layer includes a wax composition having a biologically active ingredient incorporated therein and the second coating layer includes a polymeric composition. The granular agrochemical composition exhibits a controlled rate of release of the biologically active ingredient therefrom over a period greater than about 30 days from the date of initial exposure of the granular composition to moisture whereby essentially all of the biologically active ingredient incorporated in the wax material of the first coating layer is released from the granular composition before the water soluble portion of the granular core material is released from the granular composition.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: April 21, 2015
    Assignee: Everris International B.V.
    Inventors: Lonneke Jacoba van Boxtel-Verhoeven, Johannes Gijsbertus Antonius Terlingen, Petra Leonarda Hendrica Lunde-Vannuys
  • Publication number: 20150035683
    Abstract: A system for enhancement of crop production includes a triggerable seed support package. The triggerable seed support package has a payload including seed enhancement material, where the payload is configured to be released in response to a trigger.
    Type: Application
    Filed: July 31, 2013
    Publication date: February 5, 2015
    Inventor: Roderick A. Hyde
  • Patent number: 8888887
    Abstract: A controlled release fertilizer material comprising a particulate plant nutrient surrounded by a coating of a mixture including an isocyanate and a polyol, and further comprising a modified wax that may include a polyhydroxyl compound in which the wax and/or the polyhydroxyl compound are cross-linked with a sulfur or oxygen or a peroxide cross-linking moiety. In certain embodiments, the wax and polyhydroxyl compound are cross-linked at unsaturated sites in the wax or polyhydroxyl compound using heat, UV or ionizing radiation.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: November 18, 2014
    Assignee: Agrium Advanced Technologies (U.S.) Inc.
    Inventors: Garrard Lee Hargrove, Sriramakrishna Maruvada, Robert Scott Wilson, Nick Peter Wynnyk, Baozhong Xing
  • Patent number: 8741021
    Abstract: A controlled release fertilizer composition and methods to produce the controlled release fertilizer composition are described. The controlled release fertilizer composition comprises a water soluble fertilizer core that is coated with a polymeric layer, intermediate layer, and a sulfur layer. If desired, the sulfur layer can be coated with an outer water-insoluble layer.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: June 3, 2014
    Assignee: Agrium Inc.
    Inventors: Jeffrey Michael Ogle, Johnny Duran Sims
  • Patent number: 8741022
    Abstract: A controlled release fertilizer composition and methods to produce the controlled release fertilizer composition are described. The controlled release fertilizer composition comprises a water soluble fertilizer core that is coated with a polymeric layer, intermediate layer, and a sulfur layer. If desired, the sulfur layer can be coated with an outer water-insoluble layer.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: June 3, 2014
    Assignee: Agrium Inc.
    Inventors: Jeffrey Michael Ogle, Johnny Duran Sims
  • Patent number: 8617286
    Abstract: The method for increasing yield of crop plants uses foliar application to the plants during the plant growth stage of a granular fertilizer consisting essentially of urea, ammonium sulfate and a fertilizer stabilizing agent. The stabilizing agent regulates and slows down decomposition nitrogen in urea and/or ammonium sulfate to maximize use thereof. The granular fertilizer has a urea/ammonium sulfate weight ratio of about 4/1 and contains at least 40% nitrogen and at least 4% sulfur. The relatively high N—S fertilizer is applied at relatively high rates of about 100 to 150 pounds per acre to ensure that the fertilizer nutrients are always available to the plants at several stages of growth.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: December 31, 2013
    Inventor: John M. Rizzo
  • Patent number: 8497229
    Abstract: A granular agrochemical composition is disclosed including a granular core material having a water soluble portion with a first coating layer applied on the surface of the core material and a second coating layer applied on the surface of the first coating layer. The first coating layer includes a wax composition having a biologically active ingredient incorporated therein and the second coating layer includes a polymeric composition. The granular agrochemical composition exhibits a controlled rate of release of the biologically active ingredient therefrom over a period greater than about 30 days from the date of initial exposure of the granular composition to moisture whereby essentially all of the biologically active ingredient incorporated in the wax material of the first coating layer is released from the granular composition before the water soluble portion of the granular core material is released from the granular composition.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: July 30, 2013
    Assignee: Everris International B.V.
    Inventors: Lonneke Jacoba van Boxtel-Verhoeven, Johannes Gijsbertus Antonius Terlingen, Petra Leonarda Hendrica Lunde-Vannuys
  • Patent number: 8303680
    Abstract: An encapsulated particle comprises a core particle and a polyurethane layer disposed about the core particle. The core particle can be various particles, such as fertilizer, biocides, flame retardants, seeds, etc. The polyurethane layer comprises the reaction product of an isocyanate component and an isocyanate-reactive component. The isocyanate-reactive component comprises a graft polyol having a continuous phase and polymeric particles. A method of forming the encapsulated particle comprises the steps of providing the core particle, applying the isocyanate and isocyanate-reactive components to the core particle, and reacting the isocyanate and isocyanate-reactive components to form the polyurethane layer. The encapsulated particle has excellent physical properties, such as increased water repellency, resiliency and shelf life.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: November 6, 2012
    Assignee: BASF SE
    Inventor: Donald C. Mente
  • Patent number: 8211200
    Abstract: A controlled release nitrogeneous fertilizer composition system, comprising (a) a tannin selected from the group consisting of purified tannins, purified modified tannins, condensate tannins, and mixtures thereof; (b) a nitrogeneous fertilizer component selected from the group consisting of an ammonia fertilizer, an ammonium fertilizer, a urea fertilizer, a nitrogen containing fertilizer, a natural nitrogen containing organic fertilizer, a nitrogen containing waste product fertilizer, a slow and control release fertilizer, and mixtures thereof; and optionally (c) a carrier. Also disclosed is a method for making such fertilizer composition systems.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: July 3, 2012
    Assignee: Mitanic, Inc.
    Inventor: Edward M. Gres
  • Patent number: 8211201
    Abstract: A method of manufacturing a controlled release fertilizer wherein the fertilizer is deposited onto a first polymer film and then covered by a second polymer film to encapsulate the fertilizer between the first polymer film and the second polymer film.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: July 3, 2012
    Assignee: Cellulosetek, LLC
    Inventor: Santosh Yadav
  • Patent number: 7931729
    Abstract: A method of manufacturing a controlled release fertilizer wherein the fertilizer is deposited onto a first polymer film and then covered by a second polymer film to encapsulate the fertilizer between the first polymer film and the second polymer film.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: April 26, 2011
    Assignee: CelluloseTek, LLC
    Inventor: Yadav Santosh
  • Patent number: 7790225
    Abstract: Coatings and methods are provided. An embodiment of the coating includes microcapsules that contain at least one of a corrosion inhibitor, a film-forming compound, and an indicator. The microcapsules are dispersed in a coating vehicle. A shell of each microcapsule breaks down in the presence of an alkaline condition, resulting from corrosion.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: September 7, 2010
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Luz M. Calle, Wenyan Li
  • Patent number: 7771505
    Abstract: A controlled release fertilizer composition and methods to produce the controlled release fertilizer composition are described. The controlled release fertilizer composition comprises a water soluble fertilizer core that is coated with a polymeric layer, intermediate layer, and a sulfur layer. If desired, the sulfur layer can be coated with an outer water-insoluble layer.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: August 10, 2010
    Assignee: Agrium Inc.
    Inventors: Jeffrey Michael Ogle, Johnny Duran Sims
  • Patent number: 7731775
    Abstract: Several compositions of matter have been discovered that can be used in the manufacture of slow-release fertilizers that contain all of the essential elements needed by plants and humans. Slow-release fertilizers manufactured with these formulations can be used on mineral stressed soils to increase the quality and production of food crops grown on them. Additives, including phosphogypsum, silica sand, natural gypsum, clay, and coal dust, facilitate the timing of the release of the essential elements into the soil.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: June 8, 2010
    Assignee: University of South Florida
    Inventors: Jay W. Palmer, Heidi Kay
  • Patent number: 7674313
    Abstract: In a method for fertilizing plants, a water source is attached to a fertilizer distribution device including a controlled release fertilizer, the water source is activated, and a controlled release fertilizer enriched solution of water is distributed from the fertilizer distribution device upon a plant or the ground. The fertilizer distribution device includes the supply of controlled release fertilizer, an inlet configured to attach to a water source and an outlet configured to release a flow of fertilizer enriched water from the fertilizer distribution device. The supply of controlled release fertilizer includes a set of granules. The granules have a plurality of different solubility rates.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: March 9, 2010
    Assignee: Dysart Corporation
    Inventors: Scott Jordon, Jeffrey Jordan
  • Publication number: 20100024501
    Abstract: The present invention relates to novel precision customized control release fertilizers such as seed encapsulation nutrients, liquid formulation treatment for roots of seedlings before transplantation or for soil application or for foliar application and fertilizer granules or tablets for effective enhancement of crop yield. The fertilizer comprises a crop specific enstomized fertilizer and/or a normal fertilizer, an agropolymer made by—reacting an alkaline or hydrogen peroxide with plant material and a transition metal silicate or an amorphous silica.
    Type: Application
    Filed: November 6, 2007
    Publication date: February 4, 2010
    Applicant: BIJAM BIOSCIENCES PRIVATE LIMITED
    Inventor: Durga Yandapalli Prasad
  • Patent number: 7615093
    Abstract: A controlled release product and a method for producing the controlled release product. The product includes a substrate material for release to a surrounding environment and a composition coating the substrate material in a coating layer for providing a controlled release of the substrate material. The composition includes a matrix material; a particulate fibrous filler material dispersed throughout the matrix material and a water soluble surface treatment material applied to the external surfaces of the particles of filler material such that the surface treatment material provides degradable interfaces between the matrix material and the external surfaces of the particles of filler material, and wherein the degradable interfaces are degradable in the presence of water such that interfacial passageways between the matrix material and the external surfaces of the particles of filler material are formed by the dissolution of the surface treatment material.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: November 10, 2009
    Assignee: Beachpoint Holdings Inc.
    Inventor: Mikhail Pildysh
  • Patent number: 7494526
    Abstract: A technique is provided for delivering plant supportive materials to plants. The technique utilizes encapsulation of a plant growth facilitator, such as a plant nutrient, water or pesticide, in small structures that may be taken in through the stomata of plants. This enables a more efficient treatment, watering and/or feeding of plants by foliar application.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: February 24, 2009
    Inventor: Edward Q. Yavitz
  • Patent number: 7445657
    Abstract: A method of preparing and coating fertilizer pellets is described. Fertilizer, seed or other materials are added to a blender. Powdered micronutrients are added to the blend (at any time in the process) at rates up to but not exceeding 1% of the total blend. The resulting blend is mixed for a minimum of 20 seconds resulting in an even distribution (coating) of the total blend. The blend is then packaged into bags, spreaders or trucks and stored or applied to the field. Seed or fertilizer is augured or moved via conveyors or other means into seeding equipment or a blender. The finished product is then applied to the field or stored for later applications.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: November 4, 2008
    Inventor: Kerry Green
  • Patent number: 7416785
    Abstract: An encapsulated particle includes a core particle. The core particle includes a fertilizer selected from the group of nitrogen, phosphate, potash, and sulfur, and combinations thereof. The core particle may also include herbicides, insecticides, and fungicides. The encapsulated particle also includes a polyurethane layer disposed about the core particle. The polyurethane layer includes the reaction product of an aromatic isocyanate component and a polyol that is reactive with the aromatic isocyanate component. The aromatic isocyanate component includes methylene diphenyl diisocyanate, toluene diisocyanate, and mixtures thereof. The polyol that is reactive with the aromatic isocyanate component is derived from an aromatic amine-based initiator and includes a toluene diamine.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: August 26, 2008
    Assignee: BASF Corporation
    Inventor: Donald C. Mente
  • Patent number: 7402190
    Abstract: The present invention relates to a method for making formulated nitrogenous and complex fertilizers, in granule form, suitable for slowly releasing nitrogen, comprising the steps of preparing an aqueous urea/formaldehyde dispersion with a molar ratio from 0.8:1 to 2:1, adding an aqueous catalyzer solution in a weight ratio from 0.1 to 4%, controlling the pH of the aqueous dispersion to hold it within a range from 4.0 to 7.0, and supplying the aqueous dispersion to a recirculating granulating device, as a growth seed.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: July 22, 2008
    Inventors: Giancarlo Costa, Giuseppe Rizzi
  • Patent number: 7320724
    Abstract: A fertilizer composition is adapted to stage the controlled release of nutrients such that the composition need only be applied once in a plant's growth cycle, but with individual nutrients releasing at predetermined, staged intervals targeted to the precise needs of plants. Timed release particulate materials are blended to form the composition. The nutrients include a magnesium source (Mg), a potassium source (K), a nitrogen source (N), and a phosphate source (P). The composition is adapted to release each fertilizer nutrient over a period most beneficial to plants' physiological growth.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: January 22, 2008
    Assignee: Florikan E.S.A. Corporation
    Inventor: Edward Rosenthal
  • Patent number: 7267707
    Abstract: A polyurethane encapsulated, slow release fertilizer with a coating based upon an isocyanate component and an isocyanate-reactive component comprising a polyether polyol. The process for producing such particles comprises applying an isocyanate-reactive component comprising a polyether polyol onto fertilizer particles to form coated fertilizer particles, applying an isocyanate component onto said coated fertilizer particles; and forming the polyurethane encapsulated fertilizer particles.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: September 11, 2007
    Assignee: Florikan E.S.A. Corp.
    Inventors: Edward Rosenthal, Leon E. Padgett, Jr.
  • Patent number: 7252697
    Abstract: A method for making controlled-release ammonium phosphate fertilizer has the following acts of: cracking, pulverizing, blending, aging, drying, and adding release-controlling materials into an ammonium phosphate slurry during preparing processes or adding release-controlling materials in achieved ammonium phosphate powder. Selectively, sulfuric acid is added into the mixture of the release-controlling materials and the ammonium phosphate slurry or ammonium phosphate powder to acidify the mixture. In this method, the release-controlling material combines with the ammonium phosphate by chemical bonding to control the release of nitrogen and phosphorus nutrients to enhance the use efficiency and elongate fertilization effect of the controlled-release ammonium phosphate fertilizer.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: August 7, 2007
    Assignee: South China Agricultural University
    Inventors: Zongwen Liao, Song Bo, Xiaoyun Mao, Ping-Xiao Guan
  • Patent number: 7189275
    Abstract: A permeable composition, a controlled release product, and methods for producing the permeable composition and controlled release product. The permeable composition includes a matrix material, a particulate filler material, and interfacial passageways between the matrix material and the particles of filler material. The matrix material may include a substrate material and a carrier material. The controlled release product is formed by coating a substrate material with at least one layer of the permeable composition. The methods include the steps of applying a degradable surface treatment material to the particles of filler material and then dispersing the surface treated filler material throughout the matrix material so that degradable interfaces are provided between the matrix material and the particles of filler material.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: March 13, 2007
    Assignee: Fording Coal Limited
    Inventor: Mikhail Pildysh
  • Patent number: 7056865
    Abstract: Improved cation exchange zeolite crystalline and zeolite-like plant bed structures are disclosed, preferably saturated with water-based extracts of particular plant/herb materials exhibiting plant growth acceleration properties and synergistically providing also nutrient, and sometimes anti-microbial and insect and fungus repellent properties, as well, and with the adaptability to present the structures in solid, gel and liquid form.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: June 6, 2006
    Assignee: Allor Foundation
    Inventors: Robert H. Rines, Lisa Toth, Suzi Rines Toth
  • Patent number: 7018440
    Abstract: The present invention provides a granular fertilizer which is coated with a water-insoluble material layer (first water-insoluble material layer), a thermosetting resin layer (first thermosetting resin layer), a water-insoluble material layer (second water-insoluble material layer) and a thermosetting resin layer (second thermosetting resin layer) from inner to outer layers, and it can release fertilizer ingredients for a long time, by a smaller amount of coating materials than known coated fertilizers.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: March 28, 2006
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Nobuaki Tabei
  • Patent number: 7018441
    Abstract: The present invention provides a granular fertilizer which is coated with a thermosetting resin layer (first thermosetting resin layer), a water-insoluble material layer and a thermosetting resin layer (second thermosetting resin layer) from inner to outer layers, and it can release fertilizer ingredients for a long time, by a smaller amount of coating materials than known coated fertilizers.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: March 28, 2006
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Nobuaki Tabei
  • Patent number: 6930139
    Abstract: Coatings for agricultural grade fertilizer particles and industrial grade ammonium nitrate are provided which when applied to particles form a protective film which acts as a barrier to inhibit or prevent hydrocarbon infiltration of the fertilizer particle pores and also to physically separate the fertilizer particles and hydrocarbon materials. In so doing, the coating greatly reduces the efficacy of the fertilizer particles as an oxidizing agent for use in incendiary devices, thereby deterring or preventing the use of agricultural grade fertilizers or industrial grade ammonium nitrate in creating weapons of terror.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: August 16, 2005
    Assignee: Specialty Fertilizer Products, LLC
    Inventors: John Larry Sanders, Grigory Mazo, Jacob Mazo
  • Patent number: 6890888
    Abstract: A controlled release agricultural absorbent based product including particles of an absorbent material containing capillaries/voids between 10-200 microns in cross-sectional diameter which is impregnated in an amount of 40-95% of the capillaries/voids volume with an agriculturally beneficial material selected from the group consisting of fertilizers, insecticides, herbicides and fungicides, being produced by a process including steps of 1) introducing water to particles of absorbent material to result in absorption of water within the absorbent material, 2) heating the absorbent particles and water to transform the water within the absorbent particles to steam, 3) introducing the heated absorbent particles to an agriculturally beneficial material in aqueous solution to essentially saturate the absorbent particles with the agriculturally beneficial material, 4) granulating the combination of agriculturally beneficial material and saturated absorbent particles to solidify and harden the mixture, resulting in th
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: May 10, 2005
    Assignee: NFT Industries, LLC
    Inventors: Taylor Pursell, Arthur R. Shirley, Jr., Keith D. Cochran, Timothy G. Holt, Gregory S. Pedeen
  • Patent number: 6887828
    Abstract: An agricultural and horticultural plant growth zeolite-based composition containing a particular zeolitic (i.e., zeolite-containing) material, termed “Yenomite,” is disclosed. This composition exhibits a collection of outstanding advantageous properties in agricultural and horticultural applications. Yenomite, which is found in a particular area of Jordan, comprises primarily phillipsite as the zeolite, optionally in conjunction with palagonite. Yenomite provides surprisingly better results as compared to when other zeolite-based soil amendment compositions, even when it is used as the mined material that has been only subject to a grinding or crushing operation to a desired mesh size. As mined, Yenomite contains very low levels of undesired Na+ ions. It can, therefore, be used without being subjected to a washing operation to remove these ions. Yenomite also possesses a very high CEC. These characteristics, and others, make Yenomite uniquely suitable to use in any agricultural or horticultural operation.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: May 3, 2005
    Inventors: A. John Allen, Sebastian Braum
  • Patent number: 6841515
    Abstract: This invention relates to the production and use of encapsulated and/or concentrically-constructed fertilizer or bioremediation granules such as, for example, granules of 0.5 mm to 10 mm in diameter constructed so that there are at least two components to the granule including a core with a surrounding capsule or a core with one or more concentric layers that are distinguishable from the core with respect to nutrient content, density, hardness, solubility, composition, microbial content and permeability, as in permeability to odors or the permeability of nutrients that might volatize to the atmosphere or leach into the soil. The basic idea was to create a method for manufacturing and using fertilizer granules, which incorporate multiple concentric layers or a core plus an encapsulating outer layer.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: January 11, 2005
    Assignee: Unified Enviromental Services Group, L.L.C.
    Inventor: Jeffrey C. Burnham
  • Patent number: 6808557
    Abstract: A regenerated cellulose-encapsulated active substance and a method for encapsulating an active substance in a regenerated cellulose matrix are disclosed. The distribution of the active substance is preferably substantially homogeneous within the matrix of regenerated cellulose. The regenerated cellulose (i) has about the same molecular weight as the original cellulose from which it is prepared (ii) is substantially free of added substituent groups relative to the starting cellulose and is also substantially free of entrapped ionic liquid degradation products.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: October 26, 2004
    Assignees: The University of Alabama, PG Research Foundation
    Inventors: John David Holbrey, Scott K. Spear, Megan B. Turner, Richard Patrick Swatloski, Robin Don Rogers
  • Patent number: 6749659
    Abstract: A fertilizer granule comprises: i) an elemental sulfur and swelling clay matrix, and ii) at least one additional fertilizer material incorporated into said matrix.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: June 15, 2004
    Assignee: Enersul, Inc.
    Inventors: Zhimin Yu, James B. Hyne, Mark Ernest Grist
  • Publication number: 20040020254
    Abstract: A controlled release fertilizer material comprising a particulate plant nutrient surrounded by a coating comprising at least one substantially homogeneous layer of a urethane-containing compound and an organic additive. With appropriate selection of the additive, the shape and duration of the release profile can be modified to suit a wide variety of applications.
    Type: Application
    Filed: August 2, 2002
    Publication date: February 5, 2004
    Applicant: Agrium
    Inventors: Nick P. Wynnyk, Eugene G. Stelmack, Nicolette M. Babiak, Leslie L. Carstens, Baozhong Xing, Albert J. Geiger, J. David Eastham
  • Publication number: 20040016276
    Abstract: A controlled release fertilizer material comprising a particulate plant nutrient surrounded by a protective coating comprising at least one substantially homogeneous layer of a urethane-containing compound and a filler(s). An organic additive(s) may or may not be present.
    Type: Application
    Filed: July 26, 2002
    Publication date: January 29, 2004
    Inventors: Nick P. Wynnyk, Eugene G. Stelmack, Nicolette M. Babiak, Leslie L. Carstens, J. David Eastham, Baozhong Xing
  • Publication number: 20040003636
    Abstract: A method for making controlled-release ammonium phosphate fertilizer has the following acts of: cracking, pulverizing, blending, aging, drying, and adding release-controlling materials into an ammonium phosphate slurry during preparing processes or adding release-controlling materials in achieved ammonium phosphate powder. Selectively, sulfuric acid is added into the mixture of the release-controlling materials and the ammonium phosphate slurry or ammonium phosphate powder to acidify the mixture. In this method, the release-controlling material combines with the ammonium phosphate by chemical bonding to controll the release of nitrogen and phosphorus nutrients to enhance the use efficiency and elongate fertilization effect of the controlled-release ammonium phosphate fertilizer.
    Type: Application
    Filed: July 2, 2003
    Publication date: January 8, 2004
    Inventors: Zongwen Liao, Song Bo, Xiaoyun Mao, Ping-Xiao Guan
  • Patent number: 6663686
    Abstract: A controlled release fertilizer material comprising a particulate plant nutrient surrounded by a coating which is the reaction product of a mixture comprising: a polyol, an isocyanate and an organic wax.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: December 16, 2003
    Assignee: Agrium, Inc.
    Inventors: Albert J. Geiger, Eugene G. Stelmack, Nicolette M. Babiak
  • Patent number: 6632262
    Abstract: A controlled release urea-formaldehyde liquid resin having a nitrogen level of at least 28 wt % and its method of manufacture. The controlled release urea-formaldehyde resin is useful as a fertilizer.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: October 14, 2003
    Assignee: Georgia-Pacific Resins, Inc.
    Inventor: Kurt D. Gabrielson