Patents by Inventor Philip H. Deming

Philip H. Deming 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: 4031021
    Abstract: A magnetic toner composition for use in decorating a magnetically imaged substrate in magnetic printing machines comprising a particulate blend of between about 50% and about 99% by weight of colored magnetic particles and between about 1% and about 50% by weight of optically innocuous, non-magnetic, frictionally electrifiable particles present as a separate phase of particles substantially non-adhering to the colored magnetic particles.
    Type: Grant
    Filed: March 25, 1974
    Date of Patent: June 21, 1977
    Inventor: Philip H. Deming