Patents by Inventor Volkmar Stein

Volkmar Stein 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).

  • Micro-valve and sealing device for use in a microfluidic system, and method for the production thereof
    Patent number: 9322490
    Abstract: A micro-valve for controlling fluid flows and a sealing device for sealing off cavities in a microfluid system, in particular in a lab-on-a-chip system, and also a method for the production thereof. A valve body or a sealing element bears with a sealing surface against a sealing surface of a substrate, the valve body or the sealing element is pressed with the sealing surface thereof in a fluid-tight manner against the sealing surface of the substrate by means of a pressure-exerting ring, and the pressure-exerting ring is cohesively connected to the substrate. The pressure-exerting ring and/or the valve body or the sealing element are at least partially elastic.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: April 26, 2016
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
    Inventors: Eva Schaeffer, Volkmar Stein
  • MICRO-VALVE AND SEALING DEVICE FOR USE IN A MICROFLUIDIC SYSTEM, AND METHOD FOR THE PRODUCTION THEREOF
    Publication number: 20110114869
    Abstract: A micro-valve for controlling fluid flows and a sealing device for sealing off cavities in a microfluid system, in particular in a lab-on-a-chip system, and also a method for the production thereof. A valve body or a sealing element bears with a sealing surface against a sealing surface of a substrate, the valve body or the sealing element is pressed with the sealing surface thereof in a fluid-tight manner against the sealing surface of the substrate by means of a pressure-exerting ring, and the pressure-exerting ring is cohesively connected to the substrate. The pressure-exerting ring and/or the valve body or the sealing element are at least partially elastic.
    Type: Application
    Filed: June 19, 2009
    Publication date: May 19, 2011
    Applicant: INSTITUT FUR MIKROTECHNIK MAINZ GMBH
    Inventors: Eva Schaeffer, Volkmar Stein