Patents by Inventor Ernest Ellis

Ernest Ellis 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: 5906909
    Abstract: Lithographic printing members include a traditional flood-exposed photopolymer layer applied to one or more layers based on certain metallic inorganic materials. The metallic inorganic material overlies a substrate, which is preferably a relatively thick metal for dimensional stability and strength, but may also be a polymeric or other material. An intermediate tying layer may anchor the metallic inorganic material to the substrate. The plate is exposed and developed in the conventional manner, with the portions of the metallic inorganic layer exposed by development serving as a hydrophilic printing surface (that is, a surface accepting fountain solution).
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: May 25, 1999
    Assignee: Presstek, Inc.
    Inventor: Ernest Ellis
  • Patent number: 5786129
    Abstract: Materials that undergo self-propagating exothermic solid-solid reaction upon ignition by a heating source (e.g., a laser) are used in the fabrication of recording constructions such as lithographic printing plates, photomasks and proofing sheets. A recording construction in accordance with the invention may include at least one ignition layer comprising at least two unreacted, solid chemical species which, upon exposure to heat, combine exothermically to form a final species that is physically disrupted; and a substrate thereunder that is substantially unconsumed by heat generated by the exothermic combination. To form a lithographic printing plate, the ignition layer (or its topmost component, or a surface layer thereover) and the substrate exhibit different affinities for ink and/or an abhesive fluid for ink.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: July 28, 1998
    Assignee: Presstek, Inc.
    Inventor: Ernest Ellis