Patents by Inventor Donald E. Freepons

Donald E. Freepons has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Fertilizer processes and compositions using s-triazines
    Patent number: 5139555
    Abstract: Process of furnishing slow release nitrogen to field soil comprising inserting and distributing in the soil in particulate or granular form melamine, ammeline, ammelide, cyanuric acid, mixtures thereof, their salts, and mixtures thereof.
    Type: Grant
    Filed: September 18, 1985
    Date of Patent: August 18, 1992
    Assignee: Melamine Chemicals, Inc.
    Inventor: Donald E. Freepons
  • Plant growth regulators derived from chitin
    Patent number: 4964894
    Abstract: The invention is related to a plant growth regulating composition comprising chitosan and a non-phytotoxic acid in the form of an aqueous solution or a blend of dry powders. The composition may be applied to the soil in which the seeds are to be planted, the seeds themselves or the foliage of an emerging plant.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: October 23, 1990
    Inventor: Donald E. Freepons
  • Fertilizer compositions, processes of making them, and pocesses of using them
    Patent number: 4832728
    Abstract: Relates to a fertilizer product in granular form, to processes for making and using it. The granules have strength, sizes and weights suitable for mechanical dispensing and application to and into the soil. These granules combine particles of a nitrogen source of poor solubility in pH 7 water at 20.degree. C., that converts slowly to a useful form, together with a binder that holds these fine particles together.
    Type: Grant
    Filed: September 18, 1985
    Date of Patent: May 23, 1989
    Assignee: Melamine Chemicals, Inc.
    Inventors: G. Graham Allan, Donald E. Freepons, George M. Crews
  • Plant growth regulators derived from chitin
    Patent number: 4812159
    Abstract: A plant growth regulating composition comprising chitosan and a non-phytotoxic acid in the form of an aqueous solution or a blend of dry powders. The composition may be applied to the soil in which seeds are to be planted, the seeds themselves, or the foilage of an emerging plant.
    Type: Grant
    Filed: March 13, 1987
    Date of Patent: March 14, 1989
    Inventor: Donald E. Freepons
  • Fertilizer compositions, processes of making them and processes of using them
    Patent number: 4560400
    Abstract: Relates to a fertilizer product in granular form, to processes for making and using it. The granules have strength, sizes and weights suitable for mechanical dispensing and application to and into the soil. These granules combine particles of a nitrogen source of poor solubility in pH 7 water at 20.degree. C., that converts slowly to a useful form, together with a binder that holds these fine particles together.
    Type: Grant
    Filed: November 17, 1983
    Date of Patent: December 24, 1985
    Assignee: Melamine Chemicals, Inc.
    Inventors: G. Graham Allan, Donald E. Freepons, George M. Crews
  • Fertilizer processes and compositions using s-triazines
    Patent number: 4559075
    Abstract: Process of furnishing slow release nitrogen to field soil comprising inserting and distributing the soil in particulate or granular form melamine, ammeline, ammelide, cyanuric acid, mixtures thereof, their salts, and mixtures thereof.
    Type: Grant
    Filed: November 17, 1983
    Date of Patent: December 17, 1985
    Assignee: Melamine Chemicals, Inc.
    Inventor: Donald E. Freepons
  • Fertilizer processes and compositions using s-triazines
    Patent number: 4554003
    Abstract: Process of furnishing slow release nitrogen to field soil comprising inserting and distributing in the soil in particulate or granular form melamine, ammeline, ammelide, cyanuric acid, mixtures thereof, their salts, and mixtures thereof.
    Type: Grant
    Filed: April 8, 1983
    Date of Patent: November 19, 1985
    Assignee: Melamine Chemicals, Inc.
    Inventor: Donald E. Freepons