Patents by Inventor Mark E. Laherty

Mark E. Laherty 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).

  • Patent number: 5547390
    Abstract: An electrical plug securing device provides a length of material and embodies appendages into which are formed slots. The device is attached to the faceplate of an electrical outlet using a machine screw and the screw hole already provided to affix the faceplate to the outlet. An electrical cord is then plugged into the outlet and the cord is wrapped around the device, going through the slots and being held there by friction. Thus, the plug is prevented from being removed from the outlet inadvertently.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: August 20, 1996
    Inventor: Mark E. Laherty