Patents by Inventor Mark E. Ogle

Mark E. Ogle 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).

  • Hard water compatible phosphate-containing heat transfer fluids
    Patent number: 5766506
    Abstract: A heat transfer fluid is disclosed which comprises a glycol, a phosphate, and a copolymer additive which is a copolymer of an ethylenically substituted carboxylic acid and an aldehyde. A method for preparing the heat transfer fluid comprises admixing 92 to 96 weight percent of one or more glycols; 2 to 4 weight percent of a phosphate; and 0.01 to 0.25 weight percent of the copolymer additive. Precipitation of phosphate salts is inhibited in phosphate-containing glycol-based fluids by the addition of the copolymer additive before mixing the fluid with water.
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: June 16, 1998
    Assignee: The Dow Chemical Company
    Inventors: Abel Mendoza, Mark E. Ogle