Patents by Inventor Graziano Elegir

Graziano Elegir 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).

  • Use of mesoporous silica
    Patent number: 11142868
    Abstract: A use of organofunctionalized mesoporous silica for the production of recycled paper; the organofunctionalized mesoporous silica comprises a base mesoporous silica having, on its surface, groups having the following general formula (I), wherein Si1 is a silicon atom of the base mesoporous silica, R1 is a C1-C5 aliphatic; R2 is chosen in the group consisting of: a C1-C5 aliphatic and an oxygen atom bound with a silicon atom of the base mesoporous silica; and R3 is chosen in the group consisting of: a hydroxyl, a C1-C5 aliphatic and an oxygen atom bound with a silicon atom of the base mesoporous silica (I).
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: October 12, 2021
    Inventors: Ilaria Braschi, Chiara Bisio, Enrico Buscaroli, Daniele Bussini, Graziano Elegir, Leonardo Marchese
  • USE OF MESOPOROUS SILICA
    Publication number: 20190301096
    Abstract: A use of organofunctionalized mesoporous silica for the production of recycled paper; the organofunctionalized mesoporous silica comprises a base mesoporous silica having, on its surface, groups having the following general formula (I), wherein Si1 is a silicon atom of the base mesoporous silica, R1 is a C1-C5 aliphatic; R2 is chosen in the group consisting of: a C1-C5 aliphatic and an oxygen atom bound with a silicon atom of the base mesoporous silica; and R3 is chosen in the group consisting of: a hydroxyl, a C1-C5 aliphatic and an oxygen atom bound with a silicon atom of the base mesoporous silica (I).
    Type: Application
    Filed: July 12, 2017
    Publication date: October 3, 2019
    Inventors: Ilaria Braschi, Chiara Bisio, Enrico Buscaroli, Daniele Bussini, Graziano Elegir, Leonardo Marchese
  • Method of removing color from kraft wood pulps
    Patent number: 5834301
    Abstract: A method of removing color from wood pulp is disclosed. The method comprises the steps of preparing a wood pulp, treating the wood pulp with the xylanase wherein the xylanase is capable of releasing chromophores from the pulp and extracting the wood pulp to remove chromophores. Also disclosed are substantially purified preparations of xylanase enzymes from bacterial isolates.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: November 10, 1998
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Thomas W. Jeffries, Anthony C. Grabski, Rajesh N. Patel, Graziano Elegir, George Szakacs
  • Method of removing color from wood pulp using xylanase from streptomyces roseiscleroticus NRRL B-11019
    Patent number: 5498534
    Abstract: A method of removing color from wood pulp is disclosed. The method comprises the steps of preparing a wood pulp, treating the wood pulp with the xylanase wherein the xylanase is capable of releasing chromophores from the pulp and extracting the wood pulp to remove chromophores. Also disclosed are substantially purified preparations of xylanase enzymes from bacterial isolates. The xylanase is preferrably isolated xyl 3 obtained from Streptomyces roseiscleroticus NRRL B-11019, wherein xyl 3 has a molecular weight of approximately 21 kD as determined by SDS-gel electrophoresis and a pH optima of pH 5.0-7.0.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: March 12, 1996
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Thomas W. Jeffries, Anthony C. Grabski, Rajesh N. Patel, Graziano Elegir, George Szakacs