Patents by Inventor Johnnie David

Johnnie David 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).

  • Removable door lock for hotels and the like
    Patent number: 5360245
    Abstract: An improved security device comprising a plate member insertable between a door and a door jamb and having a first portion projectable into a latch recess in said jamb and having a recess located adjacent said door when said first portion is located in said recess, and a second member releasably engageable with said recess of said plate member and with the doorknob of said door to prevent unauthorized opening of said door.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: November 1, 1994
    Inventors: Johnnie David, Melanise David