Patents by Inventor Linnea K. Ledwith

Linnea K. Ledwith 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).

  • Semi-refined carrageenan
    Patent number: 7018635
    Abstract: The Methods of the present invention prepare carrageenan products from processed seaweed material using shear stress treatment are disclosed. The carrageenan products comprise at least about 65% by weight of carrageenan and at least about 2% by weight of acid insoluble material. The carrageenan products of the present invention preferably have an onset of hydration below about 40° C. and a color of greater than about 74 *L units. The carrageenan products of the present invention are useful as components in food products, such as, dairy products, meats, and dessert gels as well as non-food products, such as, toothpaste formulations, cosmetics, and paints.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: March 28, 2006
    Assignee: FMC Corporation
    Inventors: Albert G. Tsai, Linnea K. Ledwith, Robert Kopesky, Maurice Gerard Lynch, William Ross Blakemore, Peter J. Riley
  • Production of carrageenan and carrageenan products
    Patent number: 6479649
    Abstract: The Methods of the present invention prepare carrageenan products from processed seaweed material using shear stress treatment are disclosed. The carrageenan products comprise at least about 65% by weight of carrageenan and at least about 2% by weight of acid insoluble material. The carrageenan products of the present invention preferably have an onset of hydration below about 40° C. and a color of greater than about 74 *L units. The carrageenan products of the present invention are useful as components in food products, such as, dairy products, meats, and dessert gels as well as non-food products, such as, toothpaste formulations, cosmetics, and paints.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: November 12, 2002
    Assignee: FMC Corporation
    Inventors: Albert G. Tsai, Linnea K. Ledwith, Robert Kopesky, Maurice Gerard Lynch, William Ross Blakemore, Peter J. Riley