Patents by Inventor Allan P. Herring

Allan P. Herring 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).

  • Use of tributoxyethylphosphate to control foam in the production of soda ash from trona
    Patent number: 4083939
    Abstract: Tributoxyethylphosphate is useful in controlling foam produced during the evaporative crystallization of calcined trona solutions. The chemical is effective at low concentrations, i.e. 1 to 30 ppm, and does not significantly alter the crystal habit of the sodium carbonate crystals.
    Type: Grant
    Filed: March 22, 1977
    Date of Patent: April 11, 1978
    Assignee: FMC Corporation
    Inventors: Walter Lobunez, Joseph M. Ilardi, R. Martin Wright, Allan P. Herring