Patents by Inventor Norbert Sollner

Norbert Sollner 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).

  • Process for the manufacture of mouldings
    Patent number: 8088313
    Abstract: A measured amount of a material that is crosslinkable by impingement of a suitable form of energy, especially UV light, is introduced into a two-part mould of which the cavity determines the shape of a moulding to be produced. The two mould halves are held a small distance from one another so that a thin annular gap is formed between them, which gap is in communication with the mould cavity and through which gap excess material can escape. The crosslinking is triggered by impingement of the selected form of energy, the impingement being spatially restricted to the cavity by suitable masking so that material disposed outside the mould cavity is not crosslinked. In that manner mouldings are obtained that do not require subsequent mechanical processing, and the mould is reusable. The process is especially, but not, however, exclusively, suitable for the manufacture of contact lenses.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: January 3, 2012
    Assignee: Novartis AG
    Inventors: Peter Hagmann, Sharla Borghorst, John Golby, Peter Herbrechtsmeier, Otto Kretzschmar, Bernhard Seiferling, Norbert Söllner, Beat Müller
  • Process and device for the manufacture of mouldings and mouldings manufactured in accordance with that process
    Publication number: 20040222539
    Abstract: A measured amount of a material that is crosslinkable by impingement of a suitable form of energy, especially UV light, is introduced into a two-part mould of which the cavity determines the shape of a moulding to be produced. The two mould halves are held a small distance from one another so that a thin annular gap is formed between them, which gap is in communication with the mould cavity and through which gap excess material can escape. The crosslinking is triggered by impingement of the selected form of energy, the impingement being spatially restricted to the cavity by suitable masking so that material disposed outside the mould cavity is not crosslinked. In that manner mouldings are obtained that do not require subsequent mechanical processing, and the mould is reusable. The process is especially, but not, however, exclusively, suitable for the manufacture of contact lenses.
    Type: Application
    Filed: June 9, 2004
    Publication date: November 11, 2004
    Inventors: Peter Hagmann, Sharla Borghorst, John Golby, Peter Herbrechtsmeier, Otto Kretzchmar, Bernhard Seiferling, Norbert Sollner, Beat Muller
  • Process and device for the manufacture of mouldings and mouldings manufactured in accordance with that process
    Patent number: 6800225
    Abstract: A measured amount of a material that is crosslinkable by impingement of a suitable form of energy, especially UV light, is introduced into a two-part mould of which cavity determines the shape of a moulding to be produced. The two mould halves are held a small distance from one another so that a thin annular gap is formed between them, which gap is in communication with the mould cavity and through which gap excess material can escape. The crosslinking is triggered by impingement of the selected form of energy, the impingement being spatially restricted to the cavity by suitable masking so that material disposed outside the mould cavity is not crosslinked. In that manner mouldings are obtained that do not require subsequent mechanical processing, and the mould is reusable. The process is especially, but not, however, exclusively, suitable for the manufacture of contact lenses.
    Type: Grant
    Filed: July 14, 1994
    Date of Patent: October 5, 2004
    Assignee: Novartis AG
    Inventors: Peter Hagmann, Sharla Borghorst, John Golby, Peter Herbrechtsmeier, Otto Kretzschmar, Bernhard Seiferling, Norbert Söllner, Beat Müller