Patents Assigned to Griffin Corporation
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Patent number: 6627132Abstract: A composition and method for forming plant containers, such as plant propagation trays providing control of plant root growth. The method includes applying to a sheet of thermoformable plastic an aqueous coating composition including between approximately 20% and 45% by weight non-delaminating acrylic latex, between approximately 8% and 30% by weight copper hydroxide, between approximately 2% and 20% by weight filler, and between approximately 0.5% and 5% by weight dispersant. The coating is dried and the plastic sheet is heated to a temperature sufficient to form the plastic. The plastic sheet is then formed into a desired shape.Type: GrantFiled: July 11, 2000Date of Patent: September 30, 2003Assignee: Griffin CorporationInventors: Mark Allen Crawford, Hamid Ullah
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Patent number: 5983558Abstract: There is disclosed an improved insect bait station and a method of treating insects with a toxicant. The improved insect bait station comprises a body member, the body member defining a bait area within the body member and an opening in the body member so that insects can enter the body member and feed on an attractant bait in the bait area. The insect bait station further comprises a toxicant applicator disposed in the body member, the toxicant applicator and the body member defining a passage of predetermined dimensions such that an insect which enters the body member or feeds on the bait therein contacts the toxicant applicator so that a toxicant substance is applied to the insect.Type: GrantFiled: August 15, 1994Date of Patent: November 16, 1999Assignee: Griffin CorporationInventors: Allan S. Las, Joseph T. Mares
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Patent number: 5824707Abstract: There is disclosed a method for improving the weight gain of swine. The invention also comprises a method of improving the feed conversion efficiency of swine. The improved method comprises administering orally to swine an effective amount of copper citrate and an amount of feed sufficient to produce weight gain in swine.Type: GrantFiled: March 28, 1997Date of Patent: October 20, 1998Assignee: Griffin CorporationInventor: Gary B. Saxton
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Patent number: 5665679Abstract: There is disclosed a method of desiccating potato vines. The method comprises applying to potato vines an effective amount of an aqueous solution of a copper-alkylenediamine complex, such as a copper-ethylenediamine complex.Type: GrantFiled: October 18, 1995Date of Patent: September 9, 1997Assignee: Griffin CorporationInventor: Thomas Bond McInnes
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Patent number: 5462738Abstract: There is disclosed a granular copper hydroxide dry flowable bactericide/fungicide having improved biological activity and a method for making and using same.Type: GrantFiled: March 22, 1994Date of Patent: October 31, 1995Assignee: Griffin CorporationInventors: James H. LeFiles, Evelyn J. Taylor, Mark A. Crawford
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Patent number: 5461027Abstract: Pendimethalin microencapsulated in a microcapsule comprised of a water-soluble film forming polymer. The present invention also includes a method of microencapsulating low-melting agriculturally active materials, such as pendimethalin. The microencapsulation process comprises the steps of heating pendimethalin to a molten state. The molten pendimethalin is then combined with an aqueous solution of a water-soluble, film-forming polymer at a temperature sufficient to maintain the pendimethalin in its molten state. The pendimethalin is then emulsified in the aqueous solution so that the pendimethalin has a primary particle size of between approximately 0.1 and 10 microns. The resulting dispersion or emulsion is then spray dried at a temperature between approximately 50.degree. C. and 220.degree. C. so as to microencapsulate the pendimethalin in the polymer. Compounds for promoting the rapid solidification of the pendimethalin am also disclosed.Type: GrantFiled: October 27, 1993Date of Patent: October 24, 1995Assignee: Griffin CorporationInventor: Elliot Bergman
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Patent number: 5459162Abstract: There is disclosed an improved composition and method for improving the weight gain of poultry. The improved method comprises administering orally to poultry an effective amount of copper citrate. The improved composition comprises a feed for the poultry and an effective amount of copper citrate.Type: GrantFiled: August 17, 1994Date of Patent: October 17, 1995Assignee: Griffin CorporationInventor: Gary B. Saxton
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Patent number: 5317004Abstract: Agriculturally active materials, such as pesticides, herbicides and the like and a process for microencapsulating said materials. The present invention includes trifluralin having a polymorphic form characterized by a yellow color and a melting point of approximately 41.degree.-43.degree. C. The present invention also includes a method of using the yellow polymorphic form of trifluralin as a herbicide. In addition, the present invention includes a method of microencapsulating low-melting agriculturally active materials, such as trifluralin. The microencapsulation process comprises the steps of heating a low-melting, water-immiscible, agriculturally active material to a molten state. The molten active material is then combined with an aqueous solution of a water-soluble, film-forming polymer at a temperature sufficient to maintain the active material in its molten state.Type: GrantFiled: November 12, 1992Date of Patent: May 31, 1994Assignee: Griffin CorporationInventors: John Misselbrook, Larry J. McKinney, James H. Lefiles, Edwin F. Hoff, Jr., Elliot Bergman
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Patent number: 5304771Abstract: Powder feed apparatus for providing a precise flow rate of fine powder for laser welding as well as other welding operations where such precise flow of fine powder is required. The powder is metered by means of at least one wheel rotatable within a housing and having a peripheral edge with at least one plurality of cavities in the peripheral edge. The cavities are substantially evenly spaced entirely about the wheel periphery and sized to hold substantially equal volumes. The peripheral edge has a close clearance with the housing whereby to entrap for delivery to the outlet discrete precise quantities exclusively of the powder in the cavities. A velocity feed-back controlled motor connected to the wheel is provided to precisely control the flow rate of the powder by precisely controlling the motor velocity.Type: GrantFiled: February 18, 1992Date of Patent: April 19, 1994Assignee: D. A. Griffin CorporationInventors: Robert Griffin, James H. Downey, Frederick K. McGee
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Patent number: 5298253Abstract: There is disclosed a granular copper hydroxide dry flowable bactericide/fungicide having improved biological activity and a method for making and using same.Type: GrantFiled: August 11, 1992Date of Patent: March 29, 1994Assignee: Griffin CorporationInventors: James H. LeFiles, Evelyn J. Taylor, Mark A. Crawford
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Patent number: 5160530Abstract: Agriculturally active materials, such as pesticides, herbicides and the like and a process for microencapsulating said materials. The present invention includes trifluralin having a polymorphic form characterized by a yellow color and a melting point of approximately 41.degree.-43.degree. C. The present invention also includes a method of using the yellow polymorphic form of trifluralin as a herbicide. In addition, the present invention includes a method of microencapsulating low-melting agriculturally active materials, such as trifluralin. The microencapsulation process comprises the steps of heating a low-melting, water-immiscible, agriculturally active material to a molten state. The molten active material is then combined with an aqueous soluion of a water-soluble, film-forming polymer at a temperature sufficient to maintain the active material in its molten state.Type: GrantFiled: January 24, 1989Date of Patent: November 3, 1992Assignee: Griffin CorporationInventors: John Misselbrook, Edwin F. Hoff, Jr., Elliot Bergman, Larry J. McKinney, James H. LeFiles
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Patent number: 5073191Abstract: Agriculturally active materials, such as pesticides, herbicides and the like and a process for microencapsulating said material. The present invention includes trifluralin having a polymorphic form characterized by a yellow color and a melting point of approximately 41.degree.-43.degree. C. The present invention also includes a method using the yellow polymorphic form of trifluralin as a herbicide. In addition, the present invention includes a method of microencapsulating low-melting agriculturally active materials, such as trifluralin. The microencapsulation process comprises the steps of heating a low-melting, water-immiscible, agriculturally active material to a molten state. The molten active material is then combined with an aqueous solution of a water-soluble, film-forming polymer at a temperature sufficient to maintain the active material in its molten state.Type: GrantFiled: November 27, 1989Date of Patent: December 17, 1991Assignee: Griffin CorporationInventors: John Misselbrook, Edwin F. Hoff, Jr., Elliot Bergman, Larry J. McKinney, James H. Lefiles
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Patent number: D366689Type: GrantFiled: April 21, 1994Date of Patent: January 30, 1996Assignee: Griffin CorporationInventors: Joseph T. Mares, Allan S. Las