Patents by Inventor Christian Aspisi

Christian Aspisi 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).

  • Acrylic copolymers of N-acryloylpolymethyleneimines or N-acryloyldialkylamides, N,N'-acryloyldiaminoalcanes and N-acryloylaminoacids (or esters) their preparation and use as cation exchangers
    Patent number: 4439545
    Abstract: The invention relates to new reticulated statistic acrylic copolymers that may be used in a very wide range of solvents (water, methylene chloride, chloroform, methanol, ethanol, dimethylformamide, pyridine,) stable between pH 1 and pH 14, to preparation process thereof and to their use in ion exchange chromatography.
    Type: Grant
    Filed: November 10, 1982
    Date of Patent: March 27, 1984
    Assignee: Societe d "Expansion Scientifique "Expansia"
    Inventors: Christian Aspisi, Bernard Calas, Jacques Daunis, Michel Follet, Robert Jacquier, Joseph Parello
  • Acrylic copolymers and their use in solid phase peptide synthesis
    Patent number: 4436874
    Abstract: The present invention relates to new amino-functionalized acrylic copolymers, their preparation and their use in peptide synthesis.
    Type: Grant
    Filed: November 10, 1982
    Date of Patent: March 13, 1984
    Assignee: Societe d'Expansion Scientifique "EXPANSIA"
    Inventors: Christian Aspisi, Bernard Calas, Jacques Daunis, Michel Follet, Robert Jacquier, Joseph Parello
  • Borane complexes
    Patent number: 4436919
    Abstract: This invention relates to new chiral organoboranes of the general formula ##STR1## in which X represents a methylene group or a sulphur atom, n and p are 0 or 1, and to a preparation process of these compounds, consisting in reacting a bicyclic substituted di- or tri-thiane with a borane such as B.sub.2 H.sub.6 or BH.sub.3 : Lewis base.
    Type: Grant
    Filed: March 17, 1982
    Date of Patent: March 13, 1984
    Assignee: Societe d'Expansion Scientifique "EXPANSIA"
    Inventors: Christian Aspisi, Marc Bonato, Robert Jacquier