Patents by Inventor Stephan Wittayer

Stephan Wittayer 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: 8449830
    Abstract: A microfluidic arrangement for extracting and optionally processing an extract from a sample and for transferring the extract in flowable form to a microfluidic chip using an extractor with a compressible extraction chamber and at least one opening thereof, a reactor that has a reaction chamber, an inlet opening that communicates with the at least one opening of the extractor, wherein the two openings define a flow path between the chambers, an outlet opening for fluidically connecting to the microfluidic chip and a ventilation opening of the reaction chamber, and having a filter arrangement installed in the flow path between the extractor and the reactor. A lab-on-a-chip system with such a microfluidic arrangement and a microfluidic chip that is rigidly connected to the reactor.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: May 28, 2013
    Assignee: Institut fur Mikrotechnik Mainz GmbH
    Inventors: Jan Claussen, Stephan Wittayer, Susanne Selzer, Frithjof Von Germar
  • Publication number: 20110236273
    Abstract: A microfluidic arrangement for extracting and optionally processing an extract from a sample and for transferring the extract in flowable form to a microfluidic chip using an extractor with a compressible extraction chamber and at least one opening thereof, a reactor that has a reaction chamber, an inlet opening that communicates with the at least one opening of the extractor, wherein the two openings define a flow path between the chambers, an outlet opening for fluidically connecting to the microfluidic chip and a ventilation opening of the reaction chamber, and having a filter arrangement installed in the flow path between the extractor and the reactor. A lab-on-a-chip system with such a microfluidic arrangement and a microfluidic chip that is rigidly connected to the reactor.
    Type: Application
    Filed: September 30, 2009
    Publication date: September 29, 2011
    Applicant: INSTITUT FUR MIKROTECHNIK MAINZ GMBH
    Inventors: Jan Claussen, Stephan Wittayer, Susanne Selzer, Frithjof Von Germar