Patents by Inventor Daniel Grigas

Daniel Grigas 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).

  • Glass cylinder for a piston-cylinder assembly with reduced friction, and method for treating a glass cylinder for a piston-cylinder assembly
    Patent number: 12091358
    Abstract: A method of treating a glass cylinder for a piston-cylinder arrangement for reducing the friction of a piston on an inner cylinder wall of the glass cylinder includes: elevating surface energy of glass of an interior bounded by the inner cylinder wall and hence lowering a contact angle of the glass with water. The contact angle is lowered by: a gas discharge that acts on the glass at the inner cylinder wall and is generated by an electric or electromagnetic field; or the action of ozone on the glass surface. The glass with the lowered contact angle is contacted with water to form a water film on the contacted glass.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: September 17, 2024
    Assignees: SCHOTT Pharma AG & Co., KGaA, SCHOTT Pharma Schweiz AG
    Inventors: Eveline Rudigier-Voigt, Jovanna Djordjevic-Reiss, Thorsten Schneider, Joerg Geiger, Daniel Grigas
  • GLASS CYLINDER FOR A PISTON-CYLINDER ASSEMBLY WITH REDUCED FRICTION, AND METHOD FOR TREATING A GLASS CYLINDER FOR A PISTON-CYLINDER ASSEMBLY
    Publication number: 20200140330
    Abstract: A method of treating a glass cylinder for a piston-cylinder arrangement for reducing the friction of a piston on an inner cylinder wall of the glass cylinder includes: elevating surface energy of glass of an interior bounded by the inner cylinder wall and hence lowering a contact angle of the glass with water. The contact angle is lowered by: a gas discharge that acts on the glass at the inner cylinder wall and is generated by an electric or electromagnetic field; or the action of ozone on the glass surface. The glass with the lowered contact angle is contacted with water to form a water film on the contacted glass.
    Type: Application
    Filed: January 2, 2020
    Publication date: May 7, 2020
    Applicant: Schott AG
    Inventors: Eveline Rudigier-Voigt, Jovanna Djordjevic-Reiss, Thorsten Schneider, Joerg Geiger, Daniel Grigas