Patents by Inventor Bernhard Markwitz

Bernhard Markwitz 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).

  • Upper arm swimming aid
    Patent number: 6056612
    Abstract: An upper arm swimming aid in the form of an endless water-impermeable and air-permeable strip adapted to surround an upper arm of a wearer. The strip is formed with at least 2 inflatable segments and at least one noninflatable segments from air chambers whose seams or edges adjoin in rounded corners. The rounded corners prevent injury to the wearer.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: May 2, 2000
    Assignee: Bema Markwitz International GmbH
    Inventor: Bernhard Markwitz
  • Therapeutic aid
    Patent number: 3987506
    Abstract: A therapeutic aid comprises a fluid-filled cushion formed from sheets of synthetic plastics material welded together with a weld line dividing the interior of the cushion into two compartments. This weld line is interrupted to provide a flow opening allowing fluid to flow between the two compartments and the portions of the weld line adjacent the opening having rounded edges and are of increased width.
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: October 26, 1976
    Assignee: KG Bema "Schwimmflugel" Warenhandelsgesellschaft mbH & Co.
    Inventor: Bernhard Markwitz