Patents by Inventor Vimala Mary Francis

Vimala Mary Francis 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).

  • Patent number: 6897271
    Abstract: The present invention relates to a process for the manufacture of a porous polymer; wherein a composition comprising a polymerizable component, a porogen having an inverse temperature dependent solubility and a solvent are polymerized at a temperature around the cloud point temperature of the composition. The porous polymers obtainable according to the process of the invention are useful, for example, as materials for the manufacture of biomedical devices and prostheses, including ophthalmic devices such as contact lenses or artificial corneas.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: May 24, 2005
    Assignee: Novartis AG
    Inventors: Angelika Maria Domschke, Vimala Mary Francis
  • Patent number: 6653420
    Abstract: The present invention relates to a process for the manufacture of a porous polymer, wherein a composition comprising a polymerizable component, a porogen having an inverse temperature dependent solubility and a solvent are polymerized at a temperature around the cloud point temperature of the composition. The porous polymers obtainable according to the process of the invention are useful, for example, as materials for the manufacture of biomedical devices and prostheses, including ophthalmic devices such as contact lenses or artificial corneas.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: November 25, 2003
    Assignee: Novartis AG
    Inventors: Angelika Maria Domschke, Vimala Mary Francis
  • Publication number: 20020128346
    Abstract: The present invention relates to a cell growth substrate polymer that is obtainable by polymerizing a polymerizable component comprising least one hydrophilic monomer or macromer which is devoid of a sulfo group, at least one sulfo-group-containing monomer, and optionally a crosslinker in a weight ratio as defined in the claims. The polymers of the invention are useful, for example, as substrates for the attachment and growth of mammalian cells and tissue and in particular as materials for the manufacture of biomedical devices and prostheses, including implanted devices.
    Type: Application
    Filed: January 5, 2001
    Publication date: September 12, 2002
    Inventors: Angelika Maria Domschke, Vimala Mary Francis
  • Publication number: 20020004573
    Abstract: The present invention relates to a process for the manufacture of a porous polymer, wherein a composition comprising a polymerizable component, a porogen having an inverse temperature dependent solubility and a solvent are polymerized at a temperature around the cloud point temperature of the composition.
    Type: Application
    Filed: January 5, 2001
    Publication date: January 10, 2002
    Inventors: Angelika Maria Domschke, Vimala Mary Francis
  • Patent number: 6255360
    Abstract: The present invention relates to a process for the manufacture of porous polymers, wherein a polymerizable component comprising at least one free radically polymerizable unsaturated monomer of formula Q—X—A  (1), wherein the variables are defined as described in the claims, is polymerized in the presence of a specific solvent mixture, and the resulting porous polymer, after removal of the solvent, is subjected to an aftertreatment in an acidic or basic medium. The polymers obtainable according to the invention are useful, for example, as substrates for the attachment and growth of mammalian cells and tissue and in particular as materials for the manufacture of biomedical devices and prostheses, including implanted devices.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: July 3, 2001
    Assignee: Novartis AG
    Inventors: Angelika Maria Domschke, Vimala Mary Francis