Patents by Inventor Ralph L. Wisner

Ralph L. Wisner 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).

  • Absorbent product containing flocculated clay mineral aggregates
    Patent number: 3935363
    Abstract: The difficulties in using clay minerals as absorbents in articles such as diapers, floor mats, utility wiping cloths, etc. is overcome by flocculating the clay into granular aggregates. The dry aggregates are dispersed into a flexible fibrous support to prepare the absorbent products. The aggregates, additionally, show enhanced water absorbing properties in many instances.
    Type: Grant
    Filed: September 16, 1974
    Date of Patent: January 27, 1976
    Assignee: The Dow Chemical Company
    Inventors: Nelson D. Burkholder, Ralph L. Wisner, Dudley A. Taber