Patents by Inventor Randall P. Crothers

Randall P. Crothers 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).

  • Area light
    Patent number: D293721
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: January 12, 1988
    Assignee: Manville Corporation
    Inventors: Robert L. Ewing, John W. Harvey, Richard G. Armstrong, Randall P. Crothers
  • Area light
    Patent number: D294066
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: February 2, 1988
    Assignee: Manville Corporation
    Inventors: Robert L. Ewing, John W. Harvey, Richard G. Armstrong, Randall P. Crothers
  • Area light
    Patent number: D294397
    Type: Grant
    Filed: January 24, 1986
    Date of Patent: February 23, 1988
    Assignee: Manville Corporation
    Inventors: Robert L. Ewing, John W. Harvey, Richard G. Armstrong, Randall P. Crothers
  • Area light
    Patent number: D294523
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: March 1, 1988
    Assignee: Manville Corporation
    Inventors: Robert L. Ewing, John W. Harvey, Richard G. Armstrong, Randall P. Crothers
  • Area light
    Patent number: D294646
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: March 8, 1988
    Inventors: Robert L. Ewing, John W. Harvey, Richard G. Armstrong, Randall P. Crothers
  • Area light
    Patent number: D295328
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: April 19, 1988
    Assignee: Manville Corporation
    Inventors: Robert L. Ewing, John W. Harvey, Richard G. Armstrong, Randall P. Crothers