Patents by Inventor Karen Petzold

Karen Petzold 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).

  • Publication number: 20120172975
    Abstract: A medical device which defines a lumen for flowing a bodily fluid from an upstream end of the device to a downstream end thereof is disclosed. The device has a luminal wall (14) that extends between the upstream and downstream ends and defines the lumen within which the fluid flows. The wall exhibits a succession of protuberances spaced from each other along the length of the device. Each protuberance has a flank facing upstream (54) and a flank facing downstream (64), the flank facing upstream extending into the fluid flow so that a radially outermost part of the flow of fluid from the upstream to the downstream end of the device impinges on the upstream flank and is thereby caused to reverse its flow, and flow upstream from the upstream flank to the downstream flank of the next adjacent protuberance upstream, creating micro-vortices between two adjacent protuberances.
    Type: Application
    Filed: March 7, 2012
    Publication date: July 5, 2012
    Inventors: Hans Scholz, Karen Petzold, Ulf Kruger
  • Patent number: 8133277
    Abstract: A medical device which defines a lumen for flowing a bodily fluid from an upstream end of the device to a downstream end thereof is disclosed. The device has a luminal wall (14) that extends between the upstream and downstream ends and defines the lumen within which the fluid flows. The wall exhibits a succession of protuberances spaced from each other along the length of the device. Each protuberance has a flank facing upstream (54) and a flank facing downstream (64), the flank facing upstream extending into the fluid flow so that a radially outermost part of the flow of fluid from the upstream to the downstream end of the device impinges on the upstream flank and is thereby caused to reverse its flow, and flow upstream from the upstream flank to the downstream flank of the next adjacent protuberance upstream, creating micro-vortices between two adjacent protuberances.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: March 13, 2012
    Assignee: Bard Peripheral Vascular, Inc.
    Inventors: Hans Scholz, Karen Petzold, Ulf Kruger
  • Publication number: 20080172121
    Abstract: A medical device which defines a lumen for flowing a bodily fluid from an upstream end of the device to a downstream end thereof is disclosed. The device has a luminal wall (14) that extends between the upstream and downstream ends and defines the lumen within which the fluid flows. The wall exhibits a succession of protuberances spaced from each other along the length of the device. Each protuberance has a flank facing upstream (54) and a flank facing downstream (64), the flank facing upstream extending into the fluid flow so that a radially outermost part of the flow of fluid from the upstream to the downstream end of the device impinges on the upstream flank and is thereby caused to reverse its flow, and flow upstream from the upstream flank to the downstream flank of the next adjacent protuberance upstream, creating micro-vortices between two adjacent protuberances.
    Type: Application
    Filed: October 21, 2005
    Publication date: July 17, 2008
    Inventors: Hans Scholz, Karen Petzold, Ulf Kruger
  • Publication number: 20050069061
    Abstract: A method, system, and computer program product are provided for detecting at least one signal of interest within an input signal. At least one set of samples from the input signal is multiplied by at least one set of samples representing a complex conjugate of the input signal to obtain a series of correlation samples. Sets of one or more consecutive correlation samples are summed to obtain a series of pulse sums. A plurality of non-consecutive pulse sums are integrated to obtain a search value.
    Type: Application
    Filed: September 26, 2003
    Publication date: March 31, 2005
    Inventors: Karen Petzold, Stephen Smith
  • Patent number: 5556323
    Abstract: A method for polishing the distal end of a fiber optic connector. The distal end is first polished in the presence of an aqueous slurry comprising two different powders to bring a glass surface and a ferrule surface to a substantially common plane, and subsequently polished in the presence of an acidic solution to prevent the attachment of hydrated silica particles to the ferrule face.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: September 17, 1996
    Assignee: Siecor Corporation
    Inventors: James P. Luther, Dennis M. Knecht, Sherrh C. Reinhardt, Karen Petzold