Patents Assigned to Wen-Don Corporation
  • Patent number: 5048199
    Abstract: A dewatering composition for use in dewatering coal and other ores, comprising a sulfosuccinate, a non-ionic surfactant and a defoaming agent.
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: September 17, 1991
    Assignee: Wen-Don Corporation
    Inventor: Robert Cole
  • Patent number: 4985162
    Abstract: A dewatering composition for use in dewatering coal and other ores, comprising a sulfosuccinate, a non-ionic surfactant and a defoaming agent.
    Type: Grant
    Filed: January 6, 1989
    Date of Patent: January 15, 1991
    Assignee: Wen-Don Corporation
    Inventor: Robert Cole
  • Patent number: 4828569
    Abstract: Stains caused by povidone iodine-complex antiseptics are removed from stained linens with detergent formulations containing N-alkyl-2-pyrrolidone, gamma butyrolactone, 2-ethyl-1,3-hexanediol or 4-methyl-1,3-dioxolane-2-one.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: May 9, 1989
    Assignee: Wen-Don Corporation
    Inventors: William T. Heath, William H. Byles
  • Patent number: 4254166
    Abstract: The strength of ice is reduced by the dissolution of a water-soluble composition composed of (A) a non- or slightly-ionizing water-soluble organic compound containing one or more hydrophilic groups, and (B) an organic or inorganic, water soluble ammonium salt, optionally with surface active agent or water and conventional additives in ice-forming water. The composition is particularly suitable for application to a wet, particulate solid material prior to its storage or transportation in sub-freezing weather to produce a frozen mass of reduced mechanical strength, thereby greatly mitigating subsequent unloading or handling of the material.
    Type: Grant
    Filed: December 13, 1979
    Date of Patent: March 3, 1981
    Assignee: Wen-Don Corporation
    Inventors: James O. Glanville, Gene R. Walters