Patents by Inventor Katrinia Cornish

Katrinia Cornish 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).

  • Hypoallergenic natural rubber products from parthenium argentatum (gray) and other non-hevea brasiliensis species
    Patent number: 5717050
    Abstract: Hypoallergenic products are made from Parthenum argentatum (Gray), Ficus elastica and other non-hevea rubber-containing plants by homogenizing the plants in an aqueous medium, filtering the homogenate and separating the rubber-containing phase from the aqueous phase by centrifugation. Optionally, the filtrate may be clarified before separation. The hypoallergenic rubber products do not contain the rubber-associated proteins which are responsible for sensitization in allergic individuals.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: February 10, 1998
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Katrinia Cornish
  • Hypoallergenic natural rubber products from parthenum argentatum (gray) and other non-hevea brasiliensis species
    Patent number: 5580942
    Abstract: Hypoallergenic products are made from Parthenum argentatum (Gray), Ficus elastica and other non-hevea rubber-containing plants by homogenizing the plants in an aqueous medium, filtering the homogenate and separating the rubber-containing phase from the aqueous phase by centrifugation. Optionally, the filtrate may be clarified before separation. The hypoallergenic rubber products do not contain the rubber-associated proteins which are responsible for sensitization in allergic individuals.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: December 3, 1996
    Assignee: The United States of America, as represented by the Secretary of Agriculture
    Inventor: Katrinia Cornish