Patents by Inventor Siegfried Knemeyer, deceased

Siegfried Knemeyer, deceased 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).

  • Attitude director indicator
    Patent number: D274044
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: May 29, 1984
    Assignee: Rockwell International Corporation
    Inventors: Donald F. Schmidt, Siegfried Knemeyer, deceased
  • Attitude director indicator
    Patent number: D274045
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: May 29, 1984
    Assignee: Rockwell International Corporation
    Inventors: Donald F. Schmidt, Siegfried Knemeyer, deceased
  • Attitude director indicator
    Patent number: D274046
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: May 29, 1984
    Assignee: Rockwell International Corporation
    Inventors: Donald F. Schmidt, Siegfried Knemeyer, deceased
  • Attitude director indicator
    Patent number: D274047
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: May 29, 1984
    Assignee: Rockwell International Corporation
    Inventors: Donald F. Schmidt, Siegfried Knemeyer, deceased
  • Attitude director indicator
    Patent number: D274226
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: June 12, 1984
    Assignee: Rockwell International Corporation
    Inventors: Donald F. Schmidt, Siegfried Knemeyer, deceased