Patents by Inventor Leticia L. Lobo

Leticia L. Lobo 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).

  • Poly(vinylamine)-based superabsorbent gels and method of manufacturing the same
    Patent number: 6121409
    Abstract: Poly(vinylamine)-based superabsorbent gels are disclosed. The superabsorbent gels either comprise a mixture of a poly(vinylamine) polymer and an acidic water-absorbing polymer, like polyacrylic acid, or comprise a salt of a poly(vinylamine) polymer. An improved method of preparing poly(vinylamine) also is disclosed.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: September 19, 2000
    Assignee: AMCOL International Corporation
    Inventors: Michael A. Mitchell, Thomas W. Beihoffer, Leticia L. Lobo, Jerald W. Darlington, Jr.