Patents by Inventor Günter Hofmann

Günter Hofmann 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: 6506443
    Abstract: A method of applying surface-modifying auxiliary substances to the working area interior surfaces of die molds for the production of molded products, in particular made of rubber or plastics. The auxiliary substance is supplied in the form of a gas or vapor to the interior surfaces of the die mold, which is integrated into the processing machine, and the gas or vapor is condensed there.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: January 14, 2003
    Assignee: Firma Carl Freudenberg
    Inventors: Klaus-Jürgen Peschges, Steffen Kosack, Andreas Hartmann, Günter Hofmann
  • Patent number: 6436568
    Abstract: A method and tool for producing bipolar plates having liquid channels and gas channels, and having sealing elements made of polymer material for fuel cells. The bipolar plates are stamped, i.e., liquid and gas channels are impressed into the bipolar plates, and sealing elements are applied to the bipolar plates in one tool in two steps directly following each other.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: August 20, 2002
    Assignee: Firma Carl Freudenberg
    Inventors: Hermann Schilling, Eberhard Bock, Günter Hofmann
  • Patent number: 6338492
    Abstract: A sealing system for large-surface thin parts to be interconnected, used for the mutual sealing of separating plates, in particular of bipolar plates with interposed ion-exchange membrane units (MEA) in fuel cells. The system uses sealing elements made of polymer material, in which the individual sealing elements, injected into recesses, form an integral unit with the respective associated bipolar plate. Provision is made between the side walls of the sealing elements and the adjacent walls of the recesses for free spaces or gaps to accommodate the elastic sealing material which spreads during the compression. The sealing elements only partially fill the recesses or gaps and the height (H) of the sealing elements are greater than the depth (T) of the recess or gaps before the compression.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: January 15, 2002
    Assignee: Firma Carl Freudenberg
    Inventors: Herman Schilling, Eberhard Bock, Günter Hofmann
  • Patent number: 6208893
    Abstract: An electrode template apparatus, includes a three dimensional support member having opposite surfaces, a plurality of bores extending through the support member and through the opposite surfaces, a plurality of conductors on the member separately connected to the plurality of bores, a plurality of needle electrodes selectively extendable through the plurality of bores and into tissue to be electroporated so that each electrode is comcected to at least one conductor for connecting the electrodes to a power supply.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: March 27, 2001
    Assignee: Genetronics, Inc.
    Inventor: Günter A. Hofmann
  • Patent number: PP5311
    Abstract: A new geranium cultivar is distinguished by its brilliant color, short and compact plant, more basil branching, close internodes, small leaves and short flower stems with the flowers positioned immediately atop the foliage. The new cultivar further provides early flowering and is more floriferous as compared with commonly grown zonal geraniums.
    Type: Grant
    Filed: March 23, 1983
    Date of Patent: October 30, 1984
    Assignee: Oglevee Associates, Inc.
    Inventor: Guenter Hofmann
  • Patent number: PP5313
    Abstract: A new geranium cultivar is distinguished by its soft, pinkish-salmon color, short and compact plant, more basil branching, close internodes, smaller and lighter colored leaves with the flowers positioned closer to the foliage. In addition, early flowering is a distinguishing characteristic.
    Type: Grant
    Filed: March 23, 1983
    Date of Patent: October 30, 1984
    Assignee: Oglevee Associates, Inc.
    Inventor: Guenter Hofmann
  • Patent number: PP5314
    Abstract: A new geranium cultivar is distinguished by its brilliant color, short and compact plant, more basil branching, close internodes, small leaves and short flower stems with the flowers positioned immediately atop the foliage. The new cultivar is further distinguished by its uniformity and symmetry as compared with commonly grown zonal geraniums.
    Type: Grant
    Filed: March 23, 1983
    Date of Patent: October 30, 1984
    Assignee: Oglevee Associates, Inc.
    Inventor: Guenter Hofmann
  • Patent number: PP5315
    Abstract: A new geranium cultivar is distinguished by its uniform, salmon color tonality at a distance, more basil branching, more and earlier flowers and big flower heads as compared with commonly grown zonal geraniums.
    Type: Grant
    Filed: March 23, 1983
    Date of Patent: October 30, 1984
    Assignee: Oglevee Associates, Inc.
    Inventor: Guenter Hofmann