Patents by Inventor Frances A. Donahue

Frances A. Donahue 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).

  • Combined allantoin-hydrolyzed animal protein skin preparation
    Patent number: 4416873
    Abstract: A stable form of allantoin is provided which takes the form of a combined allantoin-hydrolyzed animal protein product which may be employed in the form of a hydroalcoholic solution, such as a cologne, after-shave lotion or skin toner, containing at least about 0.5% by weight allantoin which remains in solution, without crystallizing out, over extended periods of time.Methods for increasing the stability of allantoin and for forming a stable form of allantoin are also provided.
    Type: Grant
    Filed: December 13, 1982
    Date of Patent: November 22, 1983
    Assignee: Charles of the Ritz Group Ltd.
    Inventors: Eugene Puchalski, Frances A. Donahue, Richard P. Dixon
  • Combined allantoin-hydrolyzed animal protein product and method
    Patent number: 4374766
    Abstract: A stable form of allantoin is provided which takes the form of a combined allantoin-hydrolyzed animal protein product which may be employed in the form of a hydroalcoholic solution, such as a cologne, after-shave lotion or skin toner, containing at least about 0.5% by weight allantoin which remains in solution, without crystallizing out, over extended periods of time.Methods for increasing the stability of allantoin and for forming a stable form of allantoin are also provided.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: February 22, 1983
    Assignee: Charles of the Ritz Group Ltd.
    Inventors: Eugene Puchalski, Frances A. Donahue, Richard P. Dixon