Patents by Inventor John E. Muldoon

John E. Muldoon 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).

  • Gooseneck trailer lock
    Patent number: 5520030
    Abstract: A gooseneck trailer locking apparatus is formed by a pair of elongated telescoping members having a hitch ball and chain lock at one end for connection with the king pin of a goooseneck trailer. The other end of the telescoping members is provided with a clevis element lockably closely surrounding the depending portion of a trailer leveling and supporting jack by a clevis arm and lock securing the clevis to the jack.
    Type: Grant
    Filed: April 3, 1995
    Date of Patent: May 28, 1996
    Inventor: John E. Muldoon