Patents by Inventor Donald M. Eshelman

Donald M. Eshelman 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).

  • Patent number: 4270955
    Abstract: A treatment for reducing the dusting of a particulate zinc oxide which has been treated with an organic compound, such as propionic acid, for incorporation in rubbers and plastics, comprising treating said particulate zinc oxide which a composition selected from the group comprising trialkyl phosphates, tricresyl phosphate and mixtures thereof in an amount sufficient to reduce the dusting index thereof.
    Type: Grant
    Filed: April 29, 1980
    Date of Patent: June 2, 1981
    Assignee: The New Jersey Zinc Company
    Inventor: Donald M. Eshelman