Patents by Inventor Laurence E. Ferreira

Laurence E. Ferreira 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).

  • Rubber composition
    Patent number: 4400485
    Abstract: A rubber composition containing a phyllosilicate mineral filler is disclosed.
    Type: Grant
    Filed: August 28, 1981
    Date of Patent: August 23, 1983
    Assignee: Standard Oil Company (Indiana)
    Inventors: Harold Mukamal, Richard S. Lamar, Laurence E. Ferreira
  • Mineral treatment and composition
    Patent number: 4391734
    Abstract: A method for treating a phyllosilicate mineral by grinding a slurry of particles of the mineral in an organic medium and the product formed thereby are disclosed.
    Type: Grant
    Filed: February 28, 1981
    Date of Patent: July 5, 1983
    Assignee: Standard Oil Company (Indiana)
    Inventors: Laurence E. Ferreira, Richard S. Lamar, Ralph J. Bertolacini
  • Mineral treatment and composition
    Patent number: 4391733
    Abstract: A method for treating a phyllosilicate mineral by grinding a slurry of particles of the mineral in an organic medium and the product formed thereby are disclosed.
    Type: Grant
    Filed: August 28, 1981
    Date of Patent: July 5, 1983
    Assignee: Standard Oil Company (Indiana)
    Inventors: Richard S. Lamar, Laurence E. Ferreira, Robert C. Cloud