Patents by Inventor Betsy Dadah

Betsy Dadah 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).

  • Waterborne photoresists having binders with sulfonic acid functionality
    Patent number: 5411837
    Abstract: A waterborne photoimageable composition or photoresist comprises a latex binder polymer having acid acid functionality to render it developable in alkaline aqueous solution, at least about 50 mole percent of the acid functionality being sulfonic acid moieties, a photopolymerizeable monomer fraction, and a photoinitiator chemical system.
    Type: Grant
    Filed: May 12, 1994
    Date of Patent: May 2, 1995
    Assignee: Morton International, Inc.
    Inventors: Stephen E. Bottomley, Daniel E. Lundy, Betsy Dadah, Robert K. Barr