Patents by Inventor Nebewia Griffete

Nebewia Griffete 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).

  • Particles containing reversible covalent bonds which may be sequentially formed and broken multiple times
    Patent number: 9765163
    Abstract: The present invention is directed to a particle-containing entity P-(A--B-M)x wherein P is a solid particle attached to at least one polymer M through one or several reversible covalent bonds -A---B-, wherein A and B are functional groups respectively grafted to P and M thus forming the P-(A---B-M)x particle-containing entity with x being greater than or equal to 1, M has a degree of polymerization comprised between 5 and 1000, preferably ranging from 5 to 500, and wherein the reversible covalent bond -A---B- is chosen among an imine, a disulfide, a boronic ester or an acetal. The invention is also directed to a method of preparing this particle-containing entity, a method for sequentially forming and breaking the reversible covalent bond -A---B- in said particle-containing entity P-(A---B-M)x and dispersions comprising same.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: September 19, 2017
    Assignees: ECOLE SUPERIEURE DE PHYSIQUE ET DE CHIMIE INDUSTRIELLES DE LA VILLE DE PARIS (ESPCI), UNIVERSITE PIERRE ET MARIE CURIE (PARIS 6), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS
    Inventors: Renaud Nicolay, Corinne Soulie-Ziakovic, Ludwik Leibler, Alexandre Prevoteau, Nebewia Griffete
  • PARTICLES CONTAINING REVERSIBLE COVALENT BONDS WHICH MAY BE SEQUENTIALLY FORMED AND BROKEN MULTIPLE TIMES
    Publication number: 20150240005
    Abstract: The present invention is directed to a particle-containing entity P-(A---B-M)x wherein P is a solid particle attached to at least one polymer M through one or several reversible covalent bonds -A---B-, wherein A and B are functional groups respectively grafted to P and M thus forming the P-(A---B-M)x particle-containing entity with x being greater than or equal to 1, M has a degree of polymerization comprised between 5 and 1000, preferably ranging from 5 to 500, and wherein the reversible covalent bond -A---B- is chosen among an imine, a disulfide, a boronic ester or an acetal. The invention is also directed to a method of preparing this particle-containing entity, a method for sequentially forming and breaking the reversible covalent bond -A---B- in said particle-containing entity P-(A---B-M)x and dispersions comprising same.
    Type: Application
    Filed: October 23, 2012
    Publication date: August 27, 2015
    Inventors: Renaud Nicolay, Corinne Soulie-Ziakovic, Ludwik Leibler, Alexandre Prevoteau, Nebewia Griffete