Patents by Inventor Felton Rudolph Mayers

Felton Rudolph Mayers 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).

  • Production of support for lithographic printing plate
    Patent number: 6540901
    Abstract: The present invention provides a process for the manufacture of a substrate for use in the production of lithographic printing plates, the process comprising the steps of: (a) providing an aluminum substrate; (b) graining at least one surface of the substrate; (c) applying an anodic layer to the at least one grained surface; (d) treating the at least one grained and anodized surface with an aqueous solution comprising at least one salt of a metal from Group IB, IIB, IVA, IVB, VB, VIA, VIB, VIIB or VIII of the Periodic Table; and (e) treating the at least one treated surface with an aqueous solution comprising at least one orthophosphate salt of an alkali metal.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: April 1, 2003
    Assignee: AGFA-Gevaert
    Inventors: Felton Rudolph Mayers, Tu Vinh Chau
  • Heat sensitive printing plate precursors
    Patent number: 6403282
    Abstract: A lithographic printing plate precursor comprises a grained and anodised aluminium substrate which has been treated with a solution of water-soluble salt of a Group IVa metal fluoride and over which is provided a metallic layer, preferably a silver layer. Imagewise exposure of the precursor by means of a high intensity laser beam allows for the direct provision of press ready plates showing high image quality and clean background, good press properties and high durability on press, without the requirement for the use of intermediate film and developer chemistry. The plate precursors show enhanced sensitivity on exposure, whereupon removal of the metallic layer occurs in the exposed areas.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: June 11, 2002
    Assignee: Agfa-Gevaert
    Inventors: Felton Rudolph Mayers, Philip John Watkiss, Frederick Claus Zumsteg, Jr.
  • Production of support for lithographic printing plate
    Publication number: 20020043168
    Abstract: The present invention provides a process for the manufacture of a substrate for use in the production of lithographic printing plates, the process comprising the steps of:
    Type: Application
    Filed: July 2, 2001
    Publication date: April 18, 2002
    Inventors: Felton Rudolph Mayers, Tu Vinh Chau