Patents by Inventor William A. Every

William A. Every 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).

  • Process for purification of acrylic acid by fractional crystallization
    Patent number: 4230888
    Abstract: Pure acrylic acid may be obtained from an aqueous solution containing acrylic acid by fractional crystallization wherein a salt is added to the aqueous solution that eliminates the eutectic point between acrylic acid and water.
    Type: Grant
    Filed: December 15, 1977
    Date of Patent: October 28, 1980
    Assignee: Standard Oil Company (Ohio)
    Inventors: Stephen C. Paspek, William A. Every
  • Recovery of acrylic acid from quench bottoms by the addition of aluminum chloride
    Patent number: 4161613
    Abstract: The addition of a salt comprising a group III A metal halide, such as aluminum chloride, to an acrylic acid-water solution obtained from the oxidation of propylene or acrolein, allows recovery of a 95% or better acrylic acid solution by phase separation.
    Type: Grant
    Filed: December 14, 1977
    Date of Patent: July 17, 1979
    Assignee: Standard Oil Company (Ohio)
    Inventors: Stephen C. Paspek, Jr., William A. Every