Patents by Inventor Luisa GIANSANTI

Luisa GIANSANTI 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).

  • Class of rubber product anti-aging agents
    Patent number: 9908998
    Abstract: Use, as an anti-aging agent in polymer compounds, stilbene family compound of general formula (I): wherein the substitutes are selected from the following five combinations: a) R1, R3 and R5 are OH; R2, R4 and R6 are H; b) R1 and R4 are OCH3; R2 and R5 are OH; R3 and R6 are H; c) R1 and R4 are OH; R2 and R5 are OC(CH3)3; R3 and R6 are H; d) R1 and R4 are OCH3; R2 and R5 are OH; R3 and R6 are C(CH3)3; e) R1 and R4 are OC(CH3)3; R2 and R5 are OH; R3 and R6 are H.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: March 6, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Salvatore Cotugno, Ludovica Caliano, John House, Giovanna Mancini, Alessandro Mauceri, Luisa Giansanti
  • NEW CLASS OF RUBBER PRODUCT ANTI-AGING AGENTS
    Publication number: 20160251502
    Abstract: Use, as an anti-aging agent in polymer compounds, stilbene family compound of general formula (I): wherein the substitutes are selected from the following five combinations: a) R1, R3 and R5 are OH; R2, R4 and R6 are H; b) R1 and R4 are OCH3; R2 and R5 are OH; R3 and R6 are H; c) R1 and R4 are OH; R2 and R5 are OC(CH3)3; R3 and R6 are H; d) R1 and R4 are OCH3; R2 and R5 are OH; R3 and R6 are C(CH3)3; e) R1 and R4 are OC(CH3)3; R2 and R5 are OH; R3 and R6 are H.
    Type: Application
    Filed: October 29, 2014
    Publication date: September 1, 2016
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Salvatore COTUGNO, Ludovica CALIANO, John HOUSE, Giovanna MANCINI, Alessandro MAUCERI, Luisa GIANSANTI