Patents by Inventor Silvia Johanna de Jong

Silvia Johanna de Jong 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).

  • STEREOCOMPLEX HYDROGELS
    Publication number: 20100255098
    Abstract: The invention relates to hydrogel compositions, which can be applied as biodegradable materials and to the processes to prepare such hydrogels. The hydrogel of the present invention comprises a stereocomplex gel structure which is the result of the interaction of oligomerized monomers of one chirality with that of oligomerized monomers of the opposite chirality, both grafted to hydrophilic polymers. The grafts form an interaction which is different from a covalent chemical interaction and thus provide the gel with the required coherence.
    Type: Application
    Filed: October 8, 2009
    Publication date: October 7, 2010
    Inventors: Wilhelmus Everhardus HENNINK, Cornelis Franciscus Van Nostrum, Silvia Johanna De Jong
  • Stereocomplex hydrogels
    Patent number: 7776359
    Abstract: The invention relates to hydrogel compositions, which can be applied as biodegradable materials and to the processes to prepare such hydrogels. The hydrogel of the present invention comprises a stereocomplex gel structure which is the result of the interaction of oligomerized monomers of one chirality with that of oligomerized monomers of the opposite chirality, both grafted to hydrophilic polymers. The grafts form an interaction which is different from a covalent chemical interaction and thus provide the gel with the required coherence.
    Type: Grant
    Filed: February 21, 2000
    Date of Patent: August 17, 2010
    Assignee: Universiteit Utrecht
    Inventors: Wilhelmus Everhardus Hennink, Cornelis Franciscus van Nostrum, Silvia Johanna de Jong