Patents by Inventor Alessandro Pezzella

Alessandro Pezzella 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).

  • Process for synthesizing halogenated derivatives of fluorescein for use in the production of non-volatile memory devices
    Patent number: 7842826
    Abstract: A process performs solid phase synthesis of halogenated derivatives of fluorescein, and includes reacting fluorescein with a halide MX, wherein M is an alkali metal and X is a halogen, and Oxone® (2 KHSO5.KHSO4.K2SO4), at a temperature higher than or equal to 150° C. A structure uses a halogenated derivative of fluorescein selected from the group consisting of 2?,4?,5?-trichlorofluorescein, 2?,4?,5?,7?-tetrachlorofluorescein, 4?,5?-diiodofluorescein diacetate and 2?,4?,5?-triiodofluorescein as electro-bistable material in a non-volatile memory device.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: November 30, 2010
    Assignee: STMicroelectronics S.r.l.
    Inventors: Maria Viviana Volpe, Angela Cimmino, Alessandro Pezzella, Aniello Palma
  • PROCESS FOR SYNTHESIZING HALOGENATED DERIVATIVES OF FLUORESCEIN FOR USE IN THE PRODUCTION OF NON-VOLATILE MEMORY DEVICES
    Publication number: 20080061289
    Abstract: A process performs solid phase synthesis of halogenated derivatives of fluorescein, and includes reacting fluorescein with a halide MX, wherein M is an alkali metal and X is a halogen, and Oxone® (2 KHSO5.KHSO4.K2SO4), at a temperature higher than or equal to 150° C. A structure uses a halogenated derivative of fluorescein selected from the group consisting of 2?,4?,5?-trichlorofluorescein, 2?,4?,5?,7?-tetrachlorofluorescein, 4?,5?-diiodofluorescein diacetate and 2?,4?,5?-triiodofluorescein as electro-bistable material in a non-volatile memory device.
    Type: Application
    Filed: September 7, 2007
    Publication date: March 13, 2008
    Applicant: STMICROELECTRONICS S.R.L.
    Inventors: Maria Volpe, Angela Cimmino, Alessandro Pezzella, Aniello Palma