Patents by Inventor Darrell C. Hudson

Darrell C. Hudson 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).

  • Inhibiting phase separation in low viscosity water-based pesticide suspensions
    Patent number: 6488949
    Abstract: The present invention provides a composition for inhibiting phase separation and the resulting non-uniform distribution of an active ingredient in low viscosity, water-based pesticide suspensions. In accordance with this invention, the composition comprises from about 0.003% to about 50% by weight of a pesticide, from about 0.5% to about 10% by weight of a wetting agent; from about 0.0% to about 0.8% by weight of a thickener; from about 0.1% to about 0.5% of an antimicrobial agent; from about 5% to about 20% of an anti-freeze; from about 1% to about 8% of a hydrophobic fumed silica; and from about 40% to about 95% of water. In an embodiment of the invention, the hydrophobic fumed silica results from a hydrophilic silica which is treated with dimethyldichlorosilane.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: December 3, 2002
    Assignee: Bayer Corporation
    Inventors: James G. Shafer, Darrell C. Hudson
  • Inhibiting phase separation in low viscosity water-based pesticide suspensions
    Publication number: 20020110574
    Abstract: The present invention provides a composition for inhibiting phase separation and the resulting non-uniform distribution of an active ingredient in low viscosity, water-based pesticide suspensions. In accordance with this invention, the composition comprises from about 0.003% to about 50% by weight of a pesticide, from about 0.5% to about 10% by weight of a wetting agent; from about 0.0% to about 0.8% by weight of a thickener; from about 0.1% to about 0.5% of an antimicrobial agent; from about 5% to about 20% of an anti-freeze; from about 1% to about 8% of a hydrophobic fumed silica; and from about 40% to about 95% of water. In an embodiment of the invention, the hydrophobic fumed silica results from a hydrophilic silica which is treated with dimethyldichlorosilane.
    Type: Application
    Filed: February 8, 2002
    Publication date: August 15, 2002
    Inventors: James G. Shafer, Darrell C. Hudson
  • Inhibiting phase separation in low viscosity water-based pesticide suspensions
    Patent number: 6379687
    Abstract: The present invention provides a composition for inhibiting phase separation and the resulting non-uniform distribution of an active ingredient in low viscosity, water-based pesticide suspensions. In accordance with this invention, the composition comprises from about 0.003% to about 50% by weight of a pesticide, from about 0.5% to about 10% by weight of a wetting agent; from about 0.0% to about 0.8% by weight of a thickener; from about 0.1% to about 0.5% of an antimicrobial agent; from about 5% to about 20% of an anti-freeze; from about 1% to about 8% of a hydrophobic fumed silica; and from about 40% to about 95% of water. In an embodiment of the invention, the hydrophobic fumed silica results from a hydrophilic silica which is treated with dimethyldichlorosilane.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: April 30, 2002
    Assignee: Bayer Corporation
    Inventors: James G. Shafer, Darrell C. Hudson
  • Inhibiting phase separation in low viscosity water-based pesticide suspensions
    Publication number: 20010008873
    Abstract: The present invention provides a composition for inhibiting phase separation and the resulting non-uniform distribution of an active ingredient in low viscosity, water-based pesticide suspensions. In accordance with this invention, the composition comprises from about 0.003% to about 50% by weight of a pesticide, from about 0.5% to about 10% by weight of a wetting agent; from about 0.0% to about 0.8% by weight of a thickener; from about 0.1% to about 0.5% of an antimicrobial agent; from about 5% to about 20% of an anti-freeze; from about 1% to about 8% of a hydrophobic fumed silica; and from about 40% to about 95% of water. In an embodiment of the invention, the hydrophobic fumed silica results from a hydrophilic silica which is treated with dimethyldichlorosilane.
    Type: Application
    Filed: January 12, 2001
    Publication date: July 19, 2001
    Inventors: James G. Shafer, Darrell C. Hudson
  • Inhibiting phase separation in low viscosity water-based pesticide suspensions
    Patent number: 6074987
    Abstract: The present invention provides a composition for inhibiting phase separation and the resulting non-uniform distribution of an active ingredient in low viscosity, water-based pesticide suspensions. In accordance with this invention, the composition comprises from about 0.003% to about 50% by weight of a pesticide, from about 0.5% to about 10% by weight of a wetting agent; from about 0.0% to about 0.8% by weight of a thickener; from about 0.1% to about 0.5% of an antimicrobial agent; from about 5% to about 20% of an anti-freeze; from about 1% to about 8% of a hydrophobic fumed silica; and from about 40% to about 95% of water. In an embodiment of the invention, the hydrophobic fumed silica results from a hydrophilic silica which is treated with dimethyldichlorosilane.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: June 13, 2000
    Assignee: Bayer Corporation
    Inventors: James G. Shafer, Darrell C. Hudson