Patents by Inventor Sharon Dowd

Sharon Dowd 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: 6384264
    Abstract: Organic photoprecursors of amines are provided for use in photosensitive imaging systems, finding particular application in the preparation of lithographic printing plates. Said photoprecursors generate free amines on exposure to long wavelength UV or visible radiation, have high solubility in organic solvents, and include photolabile 2-nitrobenzyl functional groups. Methods for the synthesis of the photoprecursors are described, and the use of the said photoprecursors for the production of printing plates using both positive working and negative working techniques are discussed.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: May 7, 2002
    Assignee: Agfa-Gevaert
    Inventors: Maria de Lurdes dos Santos Cristiano, John Kynaston Davies, Sharon Dowd, Robert Alexander Walker Johnstone, Michael John Pratt, John Robert Wade
  • Patent number: 6171756
    Abstract: Organic photoprecursors of amines are provided for use in photosensitive imaging systems, finding particular application in the preparation of lithographic printing plates. Said photoprecursors generate free amines on exposure to long wavelength UV or visible radiation, have high solubility in organic solvents, and include photolabile 2-nitrobenzyl functional groups. Methods for the synthesis of the photoprecursors are described, and the use of the said photoprecursors for the production of printing plates using both positive working and negative working techniques are discussed.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: January 9, 2001
    Assignee: Afga-Gevaert, N.V.
    Inventors: Maria de Lurdes dos Santos Cristiano, John Kynaston Davies, Sharon Dowd, Robert Alexander Walker Johnstone, Michael John Pratt, John Robert Wade