Patents by Inventor Anton Donald Ptacek

Anton Donald Ptacek 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).

  • Steerable Kneeling Walker
    Publication number: 20080284125
    Abstract: This invention relates to a kneeling walker comprising a frame; a steering assembly coupled to a frame of the kneeling walker and having a steering stem and a control assembly; and a handle assembly coupled to the steering stem.
    Type: Application
    Filed: December 4, 2006
    Publication date: November 20, 2008
    Inventors: Sharalyn S. Ramm, Anton Donald Ptacek
  • Kneeling walker
    Patent number: D589410
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: March 31, 2009
    Assignee: Rammtlc, LLC
    Inventors: Sharalyn S. Ramm, Anton Donald Ptacek
  • Kneeling walker
    Patent number: D597451
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: August 4, 2009
    Assignee: RammTLC, LLC
    Inventors: Sharalyn S. Ramm, Anton Donald Ptacek