Patents by Inventor Owen B. Evans

Owen B. Evans 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).

  • Matarix resin for high-temperature stable photoimageable compositions
    Patent number: 5510420
    Abstract: The present invention relates to a novel matrix resin for high-temperature stable photoimageable compositions, in the form of a graft copolymer of monomeric or lower oligomeric hydroxyphenyl units grafted onto a polymer backbone containing reactive sites, to a process for its production and to its use as a matrix resin in photoimageable compositions either in a pure form or in admixture with other polymeric materials.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: April 23, 1996
    Assignee: Hoechst Celanese Corporation
    Inventors: Ralph R. Dammel, Owen B. Evans