Patents by Inventor David S. Allan

David S. Allan 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).

  • Tagged superabsorbent polymers in a multicomponent structure
    Publication number: 20010037101
    Abstract: The present invention is an absorbent composite that contains at least two intermixed or segregated superabsorbent polymers, at least one of which is incorporated throughout with a latent indicator that becomes manifest by a developer that is peculiar to the indicator. The invention provides a means of monitoring the performance of accuracy of superabsorbent polymer placement in absorbent structures such as diapers, adult incontinence devices, and sanitary napkins.
    Type: Application
    Filed: March 9, 2001
    Publication date: November 1, 2001
    Inventors: David S. Allan, Joseph L. Weir, Richard M. Van Effen, Sergio S. Cutie