Patents by Inventor James P. Hutchins

James P. Hutchins 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).

  • Continuous process for making peroxycarboxylic acids
    Patent number: 4244884
    Abstract: An improved continuous process for making a peroxyacid having about 6 to about 20, preferably about 8 to about 16 carbon atoms and at least one peroxyacid moiety, using as starting materials the corresponding carboxylic acid and hydrogen peroxide and using sulfuric acid as a reaction medium, comprising the steps of (a) maintaining a reaction mixture having a liquid component comprising 60 to 80% sulfuric acid, 2.5 to 12.5% hydrogen peroxide, and 7.5 to 37.
    Type: Grant
    Filed: July 12, 1979
    Date of Patent: January 13, 1981
    Assignee: The Procter & Gamble Company
    Inventors: James P. Hutchins, Dana C. Winn
  • Tampon having a mensesphilic foam treated with a liquid lubricant
    Patent number: 4026292
    Abstract: Improving the handling characteristics of flexible, resilient, particulate polyurethane foam by adding a small quantity of liquid lubricant to the surface of the foam to prevent clumping. Applying as little as about 0.5 percent to about 20 percent by weight of a liquid lubricant such as mineral oil to the surface of the particulate foam facilitates more uniform filling of equal-volume containers with particles of said foam and reduces the container-to-container weight variation.
    Type: Grant
    Filed: September 17, 1974
    Date of Patent: May 31, 1977
    Assignee: The Procter & Gamble Company
    Inventors: James P. Hutchins, Robert D. Dobson