Patents by Inventor John M. Kulikowski

John M. Kulikowski 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).

  • Call button indicator for an elevator
    Patent number: D315527
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: March 19, 1991
    Assignee: Otis Elevator Company
    Inventors: John M. Kulikowski, William Weirsman
  • Hall location direction panel for elevators
    Patent number: D317136
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: May 28, 1991
    Assignee: Otis Elevator Company
    Inventors: John M. Kulikowski, Richard R. Polacek
  • Hall location direction panel for elevators
    Patent number: D317137
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: May 28, 1991
    Assignee: Otis Elevator Company
    Inventors: John M. Kulikowski, Richard R. Polacek, William Weirsman