Patents by Inventor Dianne Canistro

Dianne Canistro 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).

  • Radiation sensitive compositions comprising polymer having acid labile groups
    Patent number: 5362600
    Abstract: The invention provides a radiation sensitive composition having a polymer binder of phenolic and cyclic alcohol units. At least a portion of the phenolic units and/or cyclic alcohol units of the polymer are bonded to acid labile groups. High solubility differentials between exposed and unexposed regions are realized with only moderate substitution of the binder with the acid labile groups.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: November 8, 1994
    Assignee: Shipley Company Inc.
    Inventors: Roger Sinta, Richard C. Hemond, David R. Medeiros, Martha M. Rajaratnam, James W. Thackeray, Dianne Canistro
  • Radiation sensitive compositions comprising polymer having acid labile groups
    Patent number: 5258257
    Abstract: The invention provides a radiation sensitive composition having a polymer binder of phenolic and cyclic alcohol units. At least a portion of the phenolic units and/or cyclic alcohol units of the polymer are bonded to acid labile groups. High solubility differentials between exposed and unexposed regions are realized with only moderate substitution of the binder with the acid labile groups.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: November 2, 1993
    Assignee: Shipley Company Inc.
    Inventors: Roger Sinta, Richard C. Hemond, David R. Medeiros, Martha M. Rajaratnam, James W. Thackeray, Dianne Canistro