Patents by Inventor Daniel D. Lucas

Daniel D. Lucas 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).

  • Doorknob and lock light assembly
    Patent number: 7108387
    Abstract: A doorknob and lock light assembly for providing a useful light when for a user attempting to place a key in the lock. The doorknob and lock light assembly includes a door lock assembly including a handle being adapted to be securely attached to a door; and also includes a light-emitting assembly being attached to the door lock assembly and including a battery being disposed in the handle and also including light-emitting members being attached to the handle and being connected with wires to the battery; and further includes a sensor/switch assembly being attached to the door lock assembly and being connected to the battery.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: September 19, 2006
    Inventor: Daniel D. Lucas