Patents by Inventor Birgit Holzapfl

Birgit Holzapfl 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).

  • Biosensors array and method for operating a biosensor array
    Patent number: 8702921
    Abstract: A biosensor array having a substrate, a plurality of biosensor zones arranged on the substrate, each of which has a first terminal and a second terminal, at least one drive line and at least one detection line, the at least one drive line being electrically insulated from the at least one detection line. In each case the first terminal of each biosensor zone is coupled to precisely one of the at least one drive line and the second terminal of each biosensor zone is coupled to precisely one of the at least one detection line, and at least one of the at least one drive line and at least one of the at least one detection line is coupled to at least two of the biosensor zones.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: April 22, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Alexander Frey, Franz Hofmann, Birgit Holzapfl, Christian Paulus, Meinrad Schienle, Roland Thewes
  • Biosensors array and method for operating a biosensor array
    Publication number: 20050247559
    Abstract: A biosensor array having a substrate, a plurality of biosensor zones arranged on the substrate, each of which has a first terminal and a second terminal, at least one drive line and at least one detection line, the at least one drive line being electrically insulated from the at least one detection line. In each case the first terminal of each biosensor zone is coupled to precisely one of the at least one drive line and the second terminal of each biosensor zone is coupled to precisely one of the at least one detection line, and at least one of the at least one drive line and at least one of the at least one detection line is coupled to at least two of the biosensor zones.
    Type: Application
    Filed: December 21, 2004
    Publication date: November 10, 2005
    Applicant: Infineon Technologies AG
    Inventors: Alexander Frey, Franz Hofmann, Birgit Holzapfl, Christian Paulus, Meinrad Schienle, Roland Thewes
  • Power transistor having multifinger contacts
    Patent number: 5317176
    Abstract: A power transistor has a plurality of contacted, individual transistors. The contacts of these individual transistors are arranged at such intervals from one another that a temperature distribution results during operation that is substantially uniform for an intended power range of the transistor.
    Type: Grant
    Filed: March 3, 1993
    Date of Patent: May 31, 1994
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ulrich Schaper, Birgit Holzapfl