Patents by Inventor Jayne Mallwitz

Jayne Mallwitz 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).

  • Color stabilization of hydroquinone hydroxyethyl ether products
    Patent number: 7323119
    Abstract: The present invention relates to the color stabilization of hydroquinone hydroxyethyl ethers by phosphite compounds containing the bis-cyclic structure of spiro phosphites, both rings being attached to the same tertiary carbon atom in the phosphite molecule.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: January 29, 2008
    Assignee: Arch Chemicals, Inc.
    Inventors: Jayne Mallwitz, Robert C. Hire, Kiran B. Chandalia
  • Color stabilization of hydroquinone hydroxyethyl ether products
    Publication number: 20060043342
    Abstract: The present invention relates to the color stabilization of hydroquinone hydroxyethyl ethers by phosphite compounds containing the bis-cyclic structure of spiro phosphites, both rings being attached to the same tertiary carbon atom in the phosphite molecule.
    Type: Application
    Filed: October 26, 2005
    Publication date: March 2, 2006
    Inventors: Jayne Mallwitz, Robert Hire, Kiran Chandalia
  • Color stabilization of hydroquinone hydroxyethyl ether products
    Patent number: 6994804
    Abstract: The present invention relates to the color stabilization of hydroquinone hydroxyethyl ethers by phosphite compounds containing the bis-cyclic structure of spiro phosphites, both rings being attached to the same tertiary carbon atom in the phosphite molecule.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: February 7, 2006
    Assignee: Arch Chemicals, Inc.
    Inventors: Jayne Mallwitz, Robert C. Hire, Kiran B. Chandalia
  • Color stabilization of hydroquinone hydroxyethyl ether products
    Publication number: 20050085672
    Abstract: The present invention relates to the color stabilization of hydroquinone hydroxyethyl ethers by phosphite compounds containing the bis-cyclic structure of spiro phosphites, both rings being attached to the same tertiary carbon atom in the phosphite molecule.
    Type: Application
    Filed: June 30, 2004
    Publication date: April 21, 2005
    Inventors: Jayne Mallwitz, Robert Hire, Kiran Chandalia