Patents by Inventor William Weirsman

William Weirsman 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).

  • Ultrasonic cleaner
    Patent number: D307653
    Type: Grant
    Filed: April 28, 1986
    Date of Patent: May 1, 1990
    Assignee: Branson Ultrasonics Corporation
    Inventors: William Weirsman, Peter D. Spaine, Tomasz Migurski, George Rahgo
  • Ultrasonic cleaner
    Patent number: D307654
    Type: Grant
    Filed: April 28, 1986
    Date of Patent: May 1, 1990
    Assignee: Branson Ultrasonics Corporation
    Inventors: William Weirsman, Peter D. Spaine, Tomasz Migurski, George Rahgo
  • 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: 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
  • Hall location direction panel for elevators
    Patent number: D317138
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: May 28, 1991
    Assignee: Otis Elevator Company
    Inventors: Charles W. Luckhardt, Steven B. Davis, William Weirsman
  • Graphic and information display module face plate for hall mounted location and elevator cars
    Patent number: D317418
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: June 11, 1991
    Assignee: Otis Elevator Company
    Inventors: Steven B. Davis, William Weirsman
  • Elevator hall traffic sensor housing
    Patent number: D325355
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: April 14, 1992
    Assignee: Otis Elevator Company
    Inventors: Gary Meguerdichian, Joseph Bittar, William Weirsman
  • Cabinet door
    Patent number: D335407
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: May 11, 1993
    Assignee: Otis Elevator Company
    Inventors: Jenna P. C. Ngian, Steven B. Davis, William Weirsman